Flittermouse's NL#2 F2 Indoor Grow 2024

Flittermouse said:
Hi,

Nothing interesting to report .

Patiently waiting for NL flowers to develop in the flower tent humming along at a consistant 80°F through a 12/12 light cycle .

I have been reading HDT's "Walden" for 49 + years and still profit from such.

In the begining I would underline . . . until I had the whole book underlined.

Several pages short of the end of 'Conclusion' one reads :

"Let us not play at kittly-benders. There is a solid bottom everywhere. [...] Give me a hammer, and let me feel for the furring. [...] Drive a nail home and clinch it so faithfully that you can wake up in the night and think of your work with satisfaction - a work at which you would not be ashamed to invoke the Muse. So will help you God, and so only. Every nail driven should be as another rivet in the machine of the universe, you carrying on the work."

Tending my plants is rather such as this - I am continually aiming at getting to the bottom .

And by bottom I mean "[...] a hard bottom and rocks in place [...] " ( Penultimate page of "where I lived and what I lived for" ) .
Click to expand...
Hi,

Today I have a mistake to report . Mistakes happen and they are a good opoortunity to learn .

Following is a photo of Blk Flo plants potted for flowering . Notice the plant at upper right as damaged . This happened when transplanting .

Blk Flo for flowering

Blk Flo for flowering

Blk Flo potted for flowering with one plant damaged

During transplanting I snapped the main stalks of two plants as they had become too woody to bend enough to fit in pot without snapping .

That plant makes three casualties .

Following is a detail of broken plant :

Detail of damaged Blk Flo

Detail of damaged Blk Flo

Plant damaged in planting

I had 6 Blk Flo potted for vegetating and used two of them to replace the first two broken plants leaving me with 4 vegetating Blk Flo .

I will use one of the remaining four ( photo following ) to replace this third broken plant which will leave me with three vegetating Blk Flo - which is fine ; 3 is a good number .

Blk Flo potted to vegetate

Blk Flo potted to vegetate

One plant to be repotted to flower

I will use the plant with the most stems to flower , transplanting into the flowering soil and reserving the veg soil for furure use .

I got into this mess because I did not want to transplant the Blk Flo clones into flowering pots too soon in order to prevent the plants from getting too tall , and thus risking leaf burn ( under the flower light ) , while waiting for the NL to finish flowering .

I waited too long and the stems got woody and brittle making successful transplanting into #1 pots a risky endeavor .

Again , this is the reason I try to clone more plants than I actually need .

I would rather be up front about my mistakes rather than hide them because mistakes are learning events .

Next time I will transplant when the plants are ready ( not when I am ) and figure out how to limit their heights ( probably with LST ( Low Stress Training ) when the issue confronts me . After all , a dead plant can not be flowered !
I may end up having to cut them down to a growth node , which , if done early enough , may produce some virtuous branching .

Hope you can learn from my mistakes so you don't have to make them yourself .
 
Flittermouse said:
Hi,

Today I have a mistake to report . Mistakes happen and they are a good opoortunity to learn .

Following is a photo of Blk Flo plants potted for flowering . Notice the plant at upper right as damaged . This happened when transplanting .

Blk Flo for flowering

Blk Flo for flowering

Blk Flo potted for flowering with one plant damaged

During transplanting I snapped the main stalks of two plants as they had become too woody to bend enough to fit in pot without snapping .

That plant makes three casualties .

Following is a detail of broken plant :

Detail of damaged Blk Flo

Detail of damaged Blk Flo

Plant damaged in planting

I had 6 Blk Flo potted for vegetating and used two of them to replace the first two broken plants leaving me with 4 vegetating Blk Flo .

I will use one of the remaining four ( photo following ) to replace this third broken plant which will leave me with three vegetating Blk Flo - which is fine ; 3 is a good number .

Blk Flo potted to vegetate

Blk Flo potted to vegetate

One plant to be repotted to flower

I will use the plant with the most stems to flower , transplanting into the flowering soil and reserving the veg soil for furure use .

I got into this mess because I did not want to transplant the Blk Flo clones into flowering pots too soon in order to prevent the plants from getting too tall , and thus risking leaf burn ( under the flower light ) , while waiting for the NL to finish flowering .

I waited too long and the stems got woody and brittle making successful transplanting into #1 pots a risky endeavor .

Again , this is the reason I try to clone more plants than I actually need .

I would rather be up front about my mistakes rather than hide them because mistakes are learning events .

Next time I will transplant when the plants are ready ( not when I am ) and figure out how to limit their heights ( probably with LST ( Low Stress Training ) when the issue confronts me . After all , a dead plant can not be flowered !
I may end up having to cut them down to a growth node , which , if done early enough , may produce some virtuous branching .

Hope you can learn from my mistakes so you don't have to make them yourself .
Click to expand...
Hi,

Have been able to keep flower tent at 75°F - 80°F consistantly :

Flower tent Temp

Flower tent Temp

An even 75°F +/-

( I remember early grows when I first started and the first time i saw a mildew outbreak in the flower tent - horific . )

Following is the whole group of 6 NL plants at about 2 weeks of flowering under a 12/12 light cycle .

Overall flower tent at 2 weeks

Overall flower tent at 2 weeks

6 NL plants flowering at about two weeks on 12/12 light cycle

Following are two details of fan leaves supporting flowers .
If you look closely you may see evidence that the flowers may start to run down the stem . ( Yes , you will very much want to keep supporting fan leaves . ) I tend to manicure the colas as the fan leaves die back because manicuring after drying seems to compromise the resin sacks . Manicuring as much as I can , in a reasonable manner , before harvest , seems to produce the least waste ; and seems easier and cleaner . Maybe mostly my aesthetics ?

Fan leaves supporting flower

Fan leaves supporting flower

Detail of NL at 2 weeks +

Detail fan leaves supporting flower

Detail fan leaves supporting flower

NL at 2 weeks + of flowering under 12/12 cycle .

I love this stage of flowering , at about 2 weeks , when the pistils are out in force and flowering begins in earnest .
 
Flittermouse said:
Hi,

Have been able to keep flower tent at 75°F - 80°F consistantly :

Flower tent Temp

Flower tent Temp

An even 75°F +/-

( I remember early grows when I first started and the first time i saw a mildew outbreak in the flower tent - horific . )

Following is the whole group of 6 NL plants at about 2 weeks of flowering under a 12/12 light cycle .

Overall flower tent at 2 weeks

Overall flower tent at 2 weeks

6 NL plants flowering at about two weeks on 12/12 light cycle

Following are two details of fan leaves supporting flowers .
If you look closely you may see evidence that the flowers may start to run down the stem . ( Yes , you will very much want to keep supporting fan leaves . ) I tend to manicure the colas as the fan leaves die back because manicuring after drying seems to compromise the resin sacks . Manicuring as much as I can , in a reasonable manner , before harvest , seems to produce the least waste ; and seems easier and cleaner . Maybe mostly my aesthetics ?

Fan leaves supporting flower

Fan leaves supporting flower

Detail of NL at 2 weeks +

Detail fan leaves supporting flower

Detail fan leaves supporting flower

NL at 2 weeks + of flowering under 12/12 cycle .

I love this stage of flowering , at about 2 weeks , when the pistils are out in force and flowering begins in earnest .
Click to expand...
Hi,

Temp still at about 75°F . I guess my rather primitive climate control methods work well enough , (for now, at any rate) , .

Flower Temp

Flower Temp

At 3 Weeks


Following is a view of all six plants at 3 weeks of flowering under a 12/12 light cycle :

Flowering plants

Flowering plants

At 3 weeks

Following is a detail of one plant with flowers :

Flowering plant detail (1)

Flowering plant detail (1)

At 3 weeks

And another :

Flowering plant detail (2)

Flowering plant detail (2)

At 3 weeks

Notice the pattern of flowering along the stem at the leaf nodes.

Following is a detail of a flower at 3 weeks :

Flower detail

Flower detail

At 3 weeks


Maybe next week I will have photos of resin glands begining to form; but, if not, then when they show themselves.
 
Flittermouse said:
Hi,

Temp still at about 75°F . I guess my rather primitive climate control methods work well enough , (for now, at any rate) , .

Flower Temp

Flower Temp

At 3 Weeks


Following is a view of all six plants at 3 weeks of flowering under a 12/12 light cycle :

Flowering plants

Flowering plants

At 3 weeks

Following is a detail of one plant with flowers :

Flowering plant detail (1)

Flowering plant detail (1)

At 3 weeks

And another :

Flowering plant detail (2)

Flowering plant detail (2)

At 3 weeks

Notice the pattern of flowering along the stem at the leaf nodes.

Following is a detail of a flower at 3 weeks :

Flower detail

Flower detail

At 3 weeks


Maybe next week I will have photos of resin glands begining to form; but, if not, then when they show themselves.
Click to expand...
Hi,

As a follow up on post #21 about the trashed transplant of one Blk Flo plant for my next flowering :

I got around to transplanting a Blk Flo vegetating in vegetating soil into flowering soil .

The new transplant went through typical minor transplant shock . I put the new transplant into a breezy 60°F +/- moderately bright sunlight for a few hours before puting it under the LED .

Following is the plant , with the other 5 Blk Flo scheduled next for flowering , after spending the night under the LED. ( I will be sure to transplant when the main stalks are still young and flexable from here on out . ) ( There are ways to manage plants that are tending to become too tall but waiting to transplant them after the stalks have become woody is not one of them . )

Transplanted BlkFlo

Transplanted BlkFlo

Vegetating plant replanted

I may have taken photos of the operation but the plant needed my full attention - free of distraction . But the roots did look good and healthy .

Following is a flower detail 2 days beyond the last post .

Flower detail

Flower detail

At 3+ weeks

As a note , I harvested the Blk Flo I was growing out doors and gave a sniff test to two people , at different times , who are not cannabis consumers . Their responses where almost identical : 'Smells something like mint' . That is probably the Flo infuluence as Flo has been said to have menthol flavors . ( Amusing to note D. J. S. as the Willie Wonka of the cannabis world ) .

I am happy to have my next 6 plants getting ready for the next flowering so I had to post .
 
Flittermouse said:
Hi,

As a follow up on post #21 about the trashed transplant of one Blk Flo plant for my next flowering :

I got around to transplanting a Blk Flo vegetating in vegetating soil into flowering soil .

The new transplant went through typical minor transplant shock . I put the new transplant into a breezy 60°F +/- moderately bright sunlight for a few hours before puting it under the LED .

Following is the plant , with the other 5 Blk Flo scheduled next for flowering , after spending the night under the LED. ( I will be sure to transplant when the main stalks are still young and flexable from here on out . ) ( There are ways to manage plants that are tending to become too tall but waiting to transplant them after the stalks have become woody is not one of them . )

Transplanted BlkFlo

Transplanted BlkFlo

Vegetating plant replanted

I may have taken photos of the operation but the plant needed my full attention - free of distraction . But the roots did look good and healthy .

Following is a flower detail 2 days beyond the last post .

Flower detail

Flower detail

At 3+ weeks

As a note , I harvested the Blk Flo I was growing out doors and gave a sniff test to two people , at different times , who are not cannabis consumers . Their responses where almost identical : 'Smells something like mint' . That is probably the Flo infuluence as Flo has been said to have menthol flavors . ( Amusing to note D. J. S. as the Willie Wonka of the cannabis world ) .

I am happy to have my next 6 plants getting ready for the next flowering so I had to post .
Click to expand...
Hi,

Following are the 6 NL plants flowering at 4 weeks under a 12/12 light cycle.

NL plants flower at 4 weeks

NL plants flower at 4 weeks

6 plants at 4 weeks under 12/12 light cycle

4 weeks may be about half way to completed flowering. A significant portion of the flowering takes place during the final few weeks, as I have heard said; and which is consistant with my observations. An acceleration seems to take place. NL is said to complete flowering in 7 to 9 weeks. The final observations will be of the dark spots in the trichomes. when something like 30% to 40% of trichomes are dark then it is time to harvest??

Following is a detail of the flower pattern.

NL flowers detail

NL flowers detail

At 4 weeks

Following is a detail of one flower.

NL flower detail

NL flower detail

At 4 weeks

Zooming in may show the very begining of trichome development.

I have been using a tea of PPPP ( 5-10-2 ) in watering recently. The more P²O⁵ is probably good for flowering but maybe they would like more K²O. Maybe there is plenty of K in the MMM (M³) SOIL. I should know all of these details - but I don't. I will research and apply what I learn in the next ( Blk Flo ) flowering. The nutrients I'm using now should put me in the ball park, at any rate.
 
Flittermouse said:
Hi,

Following are the 6 NL plants flowering at 4 weeks under a 12/12 light cycle.

NL plants flower at 4 weeks

NL plants flower at 4 weeks

6 plants at 4 weeks under 12/12 light cycle

4 weeks may be about half way to completed flowering. A significant portion of the flowering takes place during the final few weeks, as I have heard said; and which is consistant with my observations. An acceleration seems to take place. NL is said to complete flowering in 7 to 9 weeks. The final observations will be of the dark spots in the trichomes. when something like 30% to 40% of trichomes are dark then it is time to harvest??

Following is a detail of the flower pattern.

NL flowers detail

NL flowers detail

At 4 weeks

Following is a detail of one flower.

NL flower detail

NL flower detail

At 4 weeks

Zooming in may show the very begining of trichome development.

I have been using a tea of PPPP ( 5-10-2 ) in watering recently. The more P²O⁵ is probably good for flowering but maybe they would like more K²O. Maybe there is plenty of K in the MMM (M³) SOIL. I should know all of these details - but I don't. I will research and apply what I learn in the next ( Blk Flo ) flowering. The nutrients I'm using now should put me in the ball park, at any rate.
Click to expand...
Hi,

For comparison, following are the plants after trimming in POST#15 and the plants at present.

NL flowering

NL flowering

Overall at 1.5 weeks under 12/12 cycle

NL plants flower at 4 weeks

NL plants flower at 4 weeks

6 plants at 4 weeks under 12/12 light cycle

Seems acceptable.
 
Flittermouse said:
Hi,

For comparison, following are the plants after trimming in POST#15 and the plants at present.

NL flowering

NL flowering

Overall at 1.5 weeks under 12/12 cycle

NL plants flower at 4 weeks

NL plants flower at 4 weeks

6 plants at 4 weeks under 12/12 light cycle

Seems acceptable.
Click to expand...
Hi,

Following are the 6 flowering NL at 5 weeks under a 12/12 light cycle :

Flower tent with NL

Flower tent with NL

Overall at 5 weeks

Following is a detail of cola development as the flowers develop along the the stem at leaf nodes :

NL cola development

NL cola development

At 5 weeks

And, following is a bud detail showing trichome development :

NL bud detail

NL bud detail

At 5 weeks

Meanwhile, back at the VEG tent, following is an overall view showing some basic LST ( Low Stress Training ):

VEG tent

VEG tent

Overall showing some LST

Following is detail of LST in the interest of keeping the plants low to the soil :

Detail in VEG tent

Detail in VEG tent

LST detail

Following is another detail of LST in the interest of promoting growth in the lower reaches of the plant :

Detail VEG tent

Detail VEG tent

Showing LST

I have been refreshing my mind of the signs of flower maturity. The two hand books I often refer to are Rosenthal and Frank.

So, I am waiting for calyxes to fatten up and for the trichomes to turn dark.

When the pistils/stigma start to turn from silky white and as the brownish mushroom heads on the trichomes first begin to drop off, if not before, it will be time to harvest.

Then will begin drying and curing. And the begining of a new flowering.
 
Flittermouse said:
Hi,

Following are the 6 flowering NL at 5 weeks under a 12/12 light cycle :

Flower tent with NL

Flower tent with NL

Overall at 5 weeks

Following is a detail of cola development as the flowers develop along the the stem at leaf nodes :

NL cola development

NL cola development

At 5 weeks

And, following is a bud detail showing trichome development :

NL bud detail

NL bud detail

At 5 weeks

Meanwhile, back at the VEG tent, following is an overall view showing some basic LST ( Low Stress Training ):

VEG tent

VEG tent

Overall showing some LST

Following is detail of LST in the interest of keeping the plants low to the soil :

Detail in VEG tent

Detail in VEG tent

LST detail

Following is another detail of LST in the interest of promoting growth in the lower reaches of the plant :

Detail VEG tent

Detail VEG tent

Showing LST

I have been refreshing my mind of the signs of flower maturity. The two hand books I often refer to are Rosenthal and Frank.

So, I am waiting for calyxes to fatten up and for the trichomes to turn dark.

When the pistils/stigma start to turn from silky white and as the brownish mushroom heads on the trichomes first begin to drop off, if not before, it will be time to harvest.

Then will begin drying and curing. And the begining of a new flowering.
Click to expand...
Hi,

6 NL overall at 6 weeks :

6 NL overall at 6 weeks flower

6 NL overall at 6 weeks flower

6 NL under 12/12 cycle

Cola development at 6 weeks :

NL Cola development

NL Cola development

At 6 weeks flowering

Bud development at 6 weeks :

NL Bud development

NL Bud development

At 6 weeks flowering

The flowering light lost half its LEDs :

Failing grow light

Failing grow light

Half of lights fail

Probably the fixture still emits plenty of light for a 3' square tent but I will be looking for a replacement.

I have had several flower lights burn out at, what seems to me to be, prematurity. The vegatating light will not flower but it does well in vegitating and has outlasted every other light I have had by a wide margin. The veg light has two light banks and I use just one bank at a time with success.

Every morning I switch one bank on and the second bank off. The logic is to extend the life of the light by using only half of the lights at a time. I see nothing lost for the effort.

I would like to find someone who is mechanically/technically/engineeringly inclined who may be able to canibalize my old lights for useful parts. Maybe they are basically trash and nothing worthwhile can be salvaged.

In any case I will be looking for a full spectrum light for flowering so that I have a light at hand when the one I am using now STB ( S**** The Bed ).

The veg light and flower light I am using are from the same engineers but they are no longer sponsers of 420, to my understanding, so I will not call them out.

When the flower light works it kicks a** and I have nothing but praise for the veg light.

UGH! more electrical waste on the way : (
 
Flittermouse said:
Hi,

6 NL overall at 6 weeks :

6 NL overall at 6 weeks flower

6 NL overall at 6 weeks flower

6 NL under 12/12 cycle

Cola development at 6 weeks :

NL Cola development

NL Cola development

At 6 weeks flowering

Bud development at 6 weeks :

NL Bud development

NL Bud development

At 6 weeks flowering

The flowering light lost half its LEDs :

Failing grow light

Failing grow light

Half of lights fail

Probably the fixture still emits plenty of light for a 3' square tent but I will be looking for a replacement.

I have had several flower lights burn out at, what seems to me to be, prematurity. The vegatating light will not flower but it does well in vegitating and has outlasted every other light I have had by a wide margin. The veg light has two light banks and I use just one bank at a time with success.

Every morning I switch one bank on and the second bank off. The logic is to extend the life of the light by using only half of the lights at a time. I see nothing lost for the effort.

I would like to find someone who is mechanically/technically/engineeringly inclined who may be able to canibalize my old lights for useful parts. Maybe they are basically trash and nothing worthwhile can be salvaged.

In any case I will be looking for a full spectrum light for flowering so that I have a light at hand when the one I am using now STB ( S**** The Bed ).

The veg light and flower light I am using are from the same engineers but they are no longer sponsers of 420, to my understanding, so I will not call them out.

When the flower light works it kicks a** and I have nothing but praise for the veg light.

UGH! more electrical waste on the way : (
Click to expand...
Hi,

Have been observing some aberant growth on the top of two plants and I just decided to give them a trim.

Following is before :

Aberant growth 1

Aberant growth 1

Aberant top growth on flowering plant

And after :

Plant post cutting 1

Plant post cutting 1

Top aberant growth cut off

And before :

Aberant growth 2

Aberant growth 2

Aberant top growth on flowering plant

And after :

Plant post cutting 2

Plant post cutting 2

Top aberant growth cut off

I don't know how to account for it. I could only guess - nutritional deficiency ? natural mutation ?

In any case, I have a new full spectrum light on the way. I will probably switch it out as soon as it arrives as the last few weeks of flowering is when a lot of the action takes place. I susspect the engineers are 420 sponsors but I will attempt to check on that before I call them out.

Sometime my veg light will go and I will rue the day because while I may find a fine full spectrum light I doubt I will find a light centered in the vegatative portion of the light spectrum - but it will be what it will be. I have been running that veg light more-or-less consistantly since about 2015 +/- if I am remembering correctly. I suppose there is nothing wrong with running full spectrum lighting but on the other hand why run light when not necessary. I would like to find some engineers who make a veg only light. maybe I will and maybe I will not. Efficiency turns me on.
 
Flittermouse said:
Hi,

Have been observing some aberant growth on the top of two plants and I just decided to give them a trim.

Following is before :

Aberant growth 1

Aberant growth 1

Aberant top growth on flowering plant

And after :

Plant post cutting 1

Plant post cutting 1

Top aberant growth cut off

And before :

Aberant growth 2

Aberant growth 2

Aberant top growth on flowering plant

And after :

Plant post cutting 2

Plant post cutting 2

Top aberant growth cut off

I don't know how to account for it. I could only guess - nutritional deficiency ? natural mutation ?

In any case, I have a new full spectrum light on the way. I will probably switch it out as soon as it arrives as the last few weeks of flowering is when a lot of the action takes place. I susspect the engineers are 420 sponsors but I will attempt to check on that before I call them out.

Sometime my veg light will go and I will rue the day because while I may find a fine full spectrum light I doubt I will find a light centered in the vegatative portion of the light spectrum - but it will be what it will be. I have been running that veg light more-or-less consistantly since about 2015 +/- if I am remembering correctly. I suppose there is nothing wrong with running full spectrum lighting but on the other hand why run light when not necessary. I would like to find some engineers who make a veg only light. maybe I will and maybe I will not. Efficiency turns me on.
Click to expand...
Hi,

The new LED full spectrum light came in, 6 days after placing order; and on a Sunday to boot !

I am fascinated by the engineering.

Following is an overall of the light and plants at 7 Wks flowering on a 12/12 light cycle and at a consistant 82.5 °F +/- :

New LED grow light

New LED grow light

Overall at 7 Wks flower


Following is the hanging apparatus :

New grow light

New grow light

Hanging apparatus


Following is the under side :

New grow light

New grow light

Under side

For comparison, following is the heat sink of the light which broke down :

Heat sink from top light

Heat sink from top light

Heat sink , no fan

Following is a detail of the heat sink of the new light :

New grow light

New grow light

Heat sink detail

The engineers modestly applied their logo on the back side of light so I have no photo but if you are motivated you may be able to recognize the design as that of one of 420's sponsors. This light is among their collection of lights for small tents; in this case, for 3'x3' tent.

The recommendation was to hang the light at 6" above plants when Temp </= 82.4°F and at 8" above plant when Temp >/= 82.5°F. I managed to have about 9" to 10" head room. ( I was carefull to have something like 24" +/- head room with the old light - so this is a very fine development which should open up new possibilities in growing technique. Thank you Phlizon. )

Interesting, to my mind, that a dimmer, which sweeps from 0 to 10, is used to adjust light output in order to accommodate seedlings, vegetating plants, and flowering plants.

Following an overall of the 6 flowering NL after one night under new light and 7 Wks overall :

NL flower

NL flower

Overall at 7 Wks

Following is cola detail :

NL cola

NL cola

At 7 Wks


And a bud detail :

NL bud

NL bud

At 7 Wks

I have the old light as a backup in case something goes horribly wrong.

Thank you all for checking in.
 
Flittermouse said:
Hi,

The new LED full spectrum light came in, 6 days after placing order; and on a Sunday to boot !

I am fascinated by the engineering.

Following is an overall of the light and plants at 7 Wks flowering on a 12/12 light cycle and at a consistant 82.5 °F +/- :

New LED grow light

New LED grow light

Overall at 7 Wks flower


Following is the hanging apparatus :

New grow light

New grow light

Hanging apparatus


Following is the under side :

New grow light

New grow light

Under side

For comparison, following is the heat sink of the light which broke down :

Heat sink from top light

Heat sink from top light

Heat sink , no fan

Following is a detail of the heat sink of the new light :

New grow light

New grow light

Heat sink detail

The engineers modestly applied their logo on the back side of light so I have no photo but if you are motivated you may be able to recognize the design as that of one of 420's sponsors. This light is among their collection of lights for small tents; in this case, for 3'x3' tent.

The recommendation was to hang the light at 6" above plants when Temp </= 82.4°F and at 8" above plant when Temp >/= 82.5°F. I managed to have about 9" to 10" head room. ( I was carefull to have something like 24" +/- head room with the old light - so this is a very fine development which should open up new possibilities in growing technique. Thank you Phlizon. )

Interesting, to my mind, that a dimmer, which sweeps from 0 to 10, is used to adjust light output in order to accommodate seedlings, vegetating plants, and flowering plants.

Following an overall of the 6 flowering NL after one night under new light and 7 Wks overall :

NL flower

NL flower

Overall at 7 Wks

Following is cola detail :

NL cola

NL cola

At 7 Wks


And a bud detail :

NL bud

NL bud

At 7 Wks

I have the old light as a backup in case something goes horribly wrong.

Thank you all for checking in.
Click to expand...
Hi,

Still monitoring the TEMP in flower tent.

Seemed to be running hot recently and I have no good explanation. TEMP at plant level was running about 90°F where it had been consistantly at about 85°F +/-. The light, being higher up, so slightly hotter (heat rises), was a concern because the manual says not to run light at/in(?) TEMPS higher than 104°F (40°C).

So, I turned heater down to lowest setting at 65°F (had been set at 70°F) and removed the blanket and throw which was draped over the top of the tent and made sure all the vents and pipe ports were open.

Then I attached the instant read cooking thermometer on the light hanging wire.

Under these configurations, the TEMP at light level is close to 80°F when light turns on :

Flower tent TEMP

Flower tent TEMP

At top of light when light turns on

Location of thermometer :

Flower tent TEMP

Flower tent TEMP

Showing location


Radiator takes temp at bottom of unit and plants are between bottom of radiator, which was set at 65°F, and top of light, which, by thermometer reading, was 80°F - so, plants were about 72.5°F, I'm guessing.

I need another thermometer; maybe two.

See what a hastle primitive climate control can be?

I seem to be walking a fine line in trying to keep the plants hotter than about 68°F in order to ward off mildew and keeping the light TEMP below 104°F in order not to cause damage.

Today seems to have gone well and I will continue to monitor and make adjustments as needed.
 
Flittermouse said:
Hi,

Still monitoring the TEMP in flower tent.

Seemed to be running hot recently and I have no good explanation. TEMP at plant level was running about 90°F where it had been consistantly at about 85°F +/-. The light, being higher up, so slightly hotter (heat rises), was a concern because the manual says not to run light at/in(?) TEMPS higher than 104°F (40°C).

So, I turned heater down to lowest setting at 65°F (had been set at 70°F) and removed the blanket and throw which was draped over the top of the tent and made sure all the vents and pipe ports were open.

Then I attached the instant read cooking thermometer on the light hanging wire.

Under these configurations, the TEMP at light level is close to 80°F when light turns on :

Flower tent TEMP

Flower tent TEMP

At top of light when light turns on

Location of thermometer :

Flower tent TEMP

Flower tent TEMP

Showing location


Radiator takes temp at bottom of unit and plants are between bottom of radiator, which was set at 65°F, and top of light, which, by thermometer reading, was 80°F - so, plants were about 72.5°F, I'm guessing.

I need another thermometer; maybe two.

See what a hastle primitive climate control can be?

I seem to be walking a fine line in trying to keep the plants hotter than about 68°F in order to ward off mildew and keeping the light TEMP below 104°F in order not to cause damage.

Today seems to have gone well and I will continue to monitor and make adjustments as needed.
Click to expand...
Hi,

My proposed solution to the heat problem in the flower tent is to hang an automatically oscillating clip-on fan with an EC (Electronically Commutated) motor above the light.

I may need an inline duct vent/fan for evacuating heat but an oscillating fan may move the air around enough to cool the light.

I placed an order for a 6" fan from a 420 sponsor. Rather than waiting untill the fan arrives, I will remove the new light and put back the old half burned out LED. I can not satisfactorily regulate TEMPS under present conditions. I have been able to keep the TEMP below 100°F (trying to stay below 104°F/40°C) largely because I have been able to monitor regularly and make adjustments. But I will not be present enough to satisfactorily monitor and adjust in the next few days.

Leaving the new light in the under-monitored tent would be risky. No reason to fatigue a new light when I already have a half burned-out one.

If I had been running a fan over the old light perhaps it would have not burned out. (I am assuming that over heating has fatal for the LED.) Because it was built without a fan, I assumed that heat dissipation had been reckoned with otherwise.

Not entirely a bad thing because now I can grow my plants about 12" taller without burning them under the light.

Looked at trichomes this morning under a 60x jewler's magnifying loupe and some of them are turning amber but saw no heads missing.

I have faith that the old light has plenty of juice left to finish flowering. Will be good to use the new light from the begining in the next flowering instead of at week 7.

I will track down an inline duct vent/fan so that I have it on hand in case I actually need it - which I very well might.

Looked at Granny420's present grow journal this morning and things look mighty fine. Lots to learn there.

If I can get my conditions stabilized, perhaps I can approach LST and QUAD techniques in new light.

Interesting comment by Waywardwayne on Post#78 of HashGirl's present journal on oxygen in water. (I do understand that cannabis roots do like oxygen and the plants do seem to grow well in soil having textured surfaces - to hold oxygen (?) ) .

Happy not to have to stress out new light but anxious to get it back on line.
 
Flittermouse said:
Hi,

My proposed solution to the heat problem in the flower tent is to hang an automatically oscillating clip-on fan with an EC (Electronically Commutated) motor above the light.

I may need an inline duct vent/fan for evacuating heat but an oscillating fan may move the air around enough to cool the light.

I placed an order for a 6" fan from a 420 sponsor. Rather than waiting untill the fan arrives, I will remove the new light and put back the old half burned out LED. I can not satisfactorily regulate TEMPS under present conditions. I have been able to keep the TEMP below 100°F (trying to stay below 104°F/40°C) largely because I have been able to monitor regularly and make adjustments. But I will not be present enough to satisfactorily monitor and adjust in the next few days.

Leaving the new light in the under-monitored tent would be risky. No reason to fatigue a new light when I already have a half burned-out one.

If I had been running a fan over the old light perhaps it would have not burned out. (I am assuming that over heating has fatal for the LED.) Because it was built without a fan, I assumed that heat dissipation had been reckoned with otherwise.

Not entirely a bad thing because now I can grow my plants about 12" taller without burning them under the light.

Looked at trichomes this morning under a 60x jewler's magnifying loupe and some of them are turning amber but saw no heads missing.

I have faith that the old light has plenty of juice left to finish flowering. Will be good to use the new light from the begining in the next flowering instead of at week 7.

I will track down an inline duct vent/fan so that I have it on hand in case I actually need it - which I very well might.

Looked at Granny420's present grow journal this morning and things look mighty fine. Lots to learn there.

If I can get my conditions stabilized, perhaps I can approach LST and QUAD techniques in new light.

Interesting comment by Waywardwayne on Post#78 of HashGirl's present journal on oxygen in water. (I do understand that cannabis roots do like oxygen and the plants do seem to grow well in soil having textured surfaces - to hold oxygen (?) ) .

Happy not to have to stress out new light but anxious to get it back on line.
Click to expand...
Hi,

Put back in the old half burned out light and attached 2 thermometers a few inches above the light in order to take the ambient TEMP proximate to the light. I have yet to take the operating TEMP of either apparatus (LED light). I have been using my hand to appproximate a difference (between ambient TEMP and operating TEMP).

The ambient TEMP above each light (before the fan) was consistantly in the mid to high 90s ( °F ) and very nearly pushing 100°F.
(That would indicate that the operating TEMP of the lights may have been significantly above 100°F and so close to or above the 104°F/40°C critical TEMP.)

With the fan on over night the ambient TEMP above the old LED was about 84°F +/- and the ambient TEMP at plant level was about 78°F +/- .

Ran the fan on oscilating mode and at a speed of one of ten. The result was a reduction of TEMP such that having an operating TEMP (of LED) below 104°F/40°C and having a flowering TEMP above 68°F, at the same time, seems entirely possible.

The fan turns on and off with the light. A very fine fan from a 420 sponsor.

I am going to switch back to the new light when the timer switches back on tonight. Seems to have worked out much better than I anticipated. Last TEMPS I took before light turned of was about 80°F at plants and about 85°F at lights. (Thank you engineers and all the other many people who dream up, design, and manufacture such apparatus.)

Following is ambient TEMP at light :


Ambient TEMP above

Ambient TEMP above

Ambient TEMP above LED

Following is ambient TEMP at plant level :

Ovaerall of 6 NL flowering

Ovaerall of 6 NL flowering

At 8 weeks on 12/12 cycle

Following are the 6 NL plants as a whole at 8 weeks :

Ovaerall of 6 NL flowering

Ovaerall of 6 NL flowering

At 8 weeks on 12/12 cycle


Following is detail of colas at 8 weeks :

NL colas

NL colas

At 8 weeks

And following is bud detail at 8 weeks :

NL bud

NL bud

At 8 weeks

Following is the fan in action above the light :

Fan setup

Fan setup

Oscilating 6" fan w/EC motor

A well thought out clip mechanism made hanging a cinch. I might be able to position the fan better over the new LED as a function of the nature of the hanging wires. I may have photos tomorrow - but if not then soon.
 
Flittermouse said:
Hi,

Put back in the old half burned out light and attached 2 thermometers a few inches above the light in order to take the ambient TEMP proximate to the light. I have yet to take the operating TEMP of either apparatus (LED light). I have been using my hand to appproximate a difference (between ambient TEMP and operating TEMP).

The ambient TEMP above each light (before the fan) was consistantly in the mid to high 90s ( °F ) and very nearly pushing 100°F.
(That would indicate that the operating TEMP of the lights may have been significantly above 100°F and so close to or above the 104°F/40°C critical TEMP.)

With the fan on over night the ambient TEMP above the old LED was about 84°F +/- and the ambient TEMP at plant level was about 78°F +/- .

Ran the fan on oscilating mode and at a speed of one of ten. The result was a reduction of TEMP such that having an operating TEMP (of LED) below 104°F/40°C and having a flowering TEMP above 68°F, at the same time, seems entirely possible.

The fan turns on and off with the light. A very fine fan from a 420 sponsor.

I am going to switch back to the new light when the timer switches back on tonight. Seems to have worked out much better than I anticipated. Last TEMPS I took before light turned of was about 80°F at plants and about 85°F at lights. (Thank you engineers and all the other many people who dream up, design, and manufacture such apparatus.)

Following is ambient TEMP at light :


Ambient TEMP above

Ambient TEMP above

Ambient TEMP above LED

Following is ambient TEMP at plant level :

Ovaerall of 6 NL flowering

Ovaerall of 6 NL flowering

At 8 weeks on 12/12 cycle

Following are the 6 NL plants as a whole at 8 weeks :

Ovaerall of 6 NL flowering

Ovaerall of 6 NL flowering

At 8 weeks on 12/12 cycle


Following is detail of colas at 8 weeks :

NL colas

NL colas

At 8 weeks

And following is bud detail at 8 weeks :

NL bud

NL bud

At 8 weeks

Following is the fan in action above the light :

Fan setup

Fan setup

Oscilating 6" fan w/EC motor

A well thought out clip mechanism made hanging a cinch. I might be able to position the fan better over the new LED as a function of the nature of the hanging wires. I may have photos tomorrow - but if not then soon.
Click to expand...
Hi,

Overlooked ambient TEMP at plant level after a night with the fan :

Flower TEMP

Flower TEMP

Ambient TEMP at plant level

Still in the sweet spot - 75°F to 85°F.
 
Flittermouse said:
Hi,

Overlooked ambient TEMP at plant level after a night with the fan :

Flower TEMP

Flower TEMP

Ambient TEMP at plant level

Still in the sweet spot - 75°F to 85°F.
Click to expand...
Hi,

I have been able to take good operating and ambient TEMPS at new light with EC (Electronically Commuted) fan running at speed 2 of 10 and the oil-filled electric radiator set at 65°F.

Following is location of instant read culinary thermometers :

Ambient and oporating TEMPS

Ambient and oporating TEMPS

TEMPS at light

And a detail of taking the operating TEMP at heat sink :


Detail of operating TEMP

Detail of operating TEMP

Location of operating TEMP

Following is the hanging system for light and hanging system for fan :

Hanging system of light

Hanging system of light

Light hanging with fan

Operating TEMP at 88°F :

Operating TEMP is 88°F

Operating TEMP is 88°F

With fan at speed 2 of 10

Ambient TEMP at light at 78°F :

Ambient TEMP at light IS 78°F

Ambient TEMP at light IS 78°F

With fan speed at 2 of 10

Ambient TEMP at plant level at 75°F :

Ambient TEMP at plants is 75°F

Ambient TEMP at plants is 75°F

With radiator set at 65°F

Overall of flowers at 8 weeks :

Overall 6 NL at 8 weeks

Overall 6 NL at 8 weeks

12/12 light cycle

Detail of colas at 8 weeks :

NL colas at 8 weeks

NL colas at 8 weeks

Detail of colas

Detail of bud at 8 weeks :

NL bud at 8 weeks

NL bud at 8 weeks

Detail of NL bud at 8 weeks

I have never felt as comfortable about the climate in my flower tent as I now feel.

I probably will not need the EC in-line evacuation fan which is headed my way but I may in the future and it will be good to have it at hand.

The trichomes are still turning amber with many still crystaline white. Did not notice dropped heads. Under 60x MAG.

9 weeks is said to be about the flowering time for NL, +/-. Maybe I will harvest colas as they suggest themselves to become harvested.
 
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