Scoooter's Green Crack DWC LED First Grow - 2017

Old TimingMan said:
Z7 is a microbial additive, I used that and a tea brew with no problems, the tea caused the roots to get tan looking but no slime or build-up, now I have skipped the tea in my clone bubbler and with Z7 the roots are nice and white...2-8 oz bottles made it through a 6 plant 13 week grow, so a little goes a long way.
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Yeah I just read the feed chart. Would last me 20 changes. Do you mix in when topping off? I'm not sure how much they will be drinking but I've read as much as a gallon per plant per day when they are mature.
 
Scoooter said:
Yeah I just read the feed chart. Would last me 20 changes. Do you mix in when topping off? I'm not sure how much they will be drinking but I've read as much as a gallon per plant per day when they are mature.
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Since my res change happens every 7 days like clockwork, my top offs have always been just straight ph'd water. Now that was when I was using tap with a ppm of 714. On my current grow RO water is being used so I would add the calimagic. Also about the Z7, it has helped to stabilize my ph must faster and only added during res change also.
 
tryan2grow1 said:
Since my res change happens every 7 days like clockwork, my top offs have always been just straight ph'd water. Now that was when I was using tap with a ppm of 714. On my current grow RO water is being used so I would add the calimagic. Also about the Z7, it has helped to stabilize my ph must faster and only added during res change also.
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Great. I'm using well water. It's only 89PPM and so far so good. There's a little silt with the water but I have a whole house 5 micron filter that takes care of that. My PH always rises for a day or two after changing then stabilizes. It's odd. I'm going to run a test next change by mixing and ph'ing then toss a spare air stone in one of the buckets while they sit overnight. Thinking maybe the DO or even the stone could raise the PH slightly? Just guessing but worth the check.
 
Scoooter said:
Yeah I just read the feed chart. Would last me 20 changes. Do you mix in when topping off? I'm not sure how much they will be drinking but I've read as much as a gallon per plant per day when they are mature.
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I always added Z7 along with the nutes when topping, and a gallon a day is about right when they are 6-10 weeks in flower, Towards the end of my grow I was adding 5 gallons to my res every 5 days.
 
Scoooter said:
Great. I'm using well water. It's only 89PPM and so far so good. There's a little silt with the water but I have a whole house 5 micron filter that takes care of that. My PH always rises for a day or two after changing then stabilizes. It's odd. I'm going to run a test next change by mixing and ph'ing then toss a spare air stone in one of the buckets while they sit overnight. Thinking maybe the DO or even the stone could raise the PH slightly? Just guessing but worth the check.
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The more the water is agitated the more the natural rise in ph occurs. So you are correct. History for me has been to ph my res around 5.5. Over the next few days keep an eye on it. Usually it raises slowly over a couple of days into the 6 range. Occasionally a few drops of ph down will be needed if the ph goes above 6.5. The natural movement of the ph thru the 5.5 to 6.5 range is a good thing for the plants to get the most out of your nutes. Just a side note with you using your well water. So far no noticeable deficiency in magnesium nor calcium. My tap has great cal-mag, my RO has none. Due to using RO water with a ppm of 25 a calcium/magnesium supplement is required. General Hydroponics Calimagic is what I use. So keep an eye on the leaves for any needs, your ladies will tell you what they require.
 
Old TimingMan said:
I always added Z7 along with the nutes when topping, and a gallon a day is about right when they are 6-10 weeks in flower, Towards the end of my grow I was adding 5 gallons to my res every 5 days.
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OTM do you make your top off water the same strength of nutes and supplements as your initial reservoir water? Please share. If I can get the ladies to eat more, well, the merrier....
 
tryan2grow1 said:
The more the water is agitated the more the natural rise in ph occurs. So you are correct. History for me has been to ph my res around 5.5. Over the next few days keep an eye on it. Usually it raises slowly over a couple of days into the 6 range. Occasionally a few drops of ph down will be needed if the ph goes above 6.5. The natural movement of the ph thru the 5.5 to 6.5 range is a good thing for the plants to get the most out of your nutes. Just a side note with you using your well water. So far no noticeable deficiency in magnesium nor calcium. My tap has great cal-mag, my RO has none. Due to using RO water with a ppm of 25 a calcium/magnesium supplement is required. General Hydroponics Calimagic is what I use. So keep an eye on the leaves for any needs, your ladies will tell you what they require.
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Great point about the PH slide and the nutrient uptake. Yeah I'm keeping an eye out for deficiencies from the water. I have CalMag for my coco grow but am not using in the dwc. Should get my well water tested at some point I guess.
 
tryan2grow1 said:
OTM do you make your top off water the same strength of nutes and supplements as your initial reservoir water? Please share. If I can get the ladies to eat more, well, the merrier....
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Yes, I treated each addition to the res as the same as before, same nutes, same PH level as it was going in. for that week. I was advised that a 7 day change is not necessary by a few that are following my journey, 10 days to 14 days will also work between changes in a RDWC, maybe it won't work in a individual bucket system because the changes in each bucket.

If you plan on doing a RDWC in the future, a monitor is a must have, so start saving up for it...one glance and you will know exactly how your system is preforming, what you need to do as far as temps, PH, and PPM's. It also will tell you if your plants are just drinking or drinking and eating...my Growboss was a little over $200 shipped, but it has been the main tool in my tool belt besides :420:
 
Scoooter said:
Great point about the PH slide and the nutrient uptake. Yeah I'm keeping an eye out for deficiencies from the water. I have CalMag for my coco grow but am not using in the dwc. Should get my well water tested at some point I guess.
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If your PPM's are that low with well water, I would add 1 ml of cal-mag per gallon to be safe, the dose should be about the same as your coco.
 
Day 17. OK ran into a problem!

See the pic below. It is of my fastest grower. Starting to get light colored spots on the leaves. Almost looks like something was eating them. I checked the water and PH was 5.9. The PPM 685. Roots look ok. Water temp 69.5F. This is the first full day of upping the nutrients so that is my first though. Just to be sure I inspected all over the plant for about 15 minutes looking for any sign of mites or critters with a 100x scope. Nothing moving. No specs of anything left behind I've seen.

The other three plants are not having this issue and it is only on the biggest one and only on the lower two large leaves.

I reduced the water to 525PPM by removing some and adding PH'd, Distilled water with appropriate amount of hydroguard.

There's some little white dust specs on them in the pictures but those are just dust that blow right off.

Thought's? Am I missing something?

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Scoooter said:
Day 17. OK ran into a problem!

See the pic below. It is of my fastest grower. Starting to get light colored spots on the leaves. Almost looks like something was eating them. I checked the water and PH was 5.9. The PPM 685. Roots look ok. Water temp 69.5F. This is the first full day of upping the nutrients so that is my first though. Just to be sure I inspected all over the plant for about 15 minutes looking for any sign of mites or critters with a 100x scope. Nothing moving. No specs of anything left behind I've seen.

The other three plants are not having this issue and it is only on the biggest one and only on the lower two large leaves.

I reduced the water to 525PPM by removing some and adding PH'd, Distilled water with appropriate amount of hydroguard.

There's some little white dust specs on them in the pictures but those are just dust that blow right off.

Thought's? Am I missing something?
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I would not get to concerned, it may be a reaction to the increase in nutes, or the bigger plant needing more goodies and using up what is stored in the bottom leaves. As long as the others look good, new growth is looking good, no bugs, just let it go for a couple days and keep a eye on it. I also had the White specks show up on the leaves, I concluded it was something that the plants were producing...from the underside of the leaves above...drove me crazy for a couple weeks trying to find bugs!:laughtwo:

I think you are going to like that 1500 King Plus, I am using 2 1200's and they worked super for the price I paid for them...are there better lights out there? sure there are, but when it come to cheap burples, I think they make a great first light.
 
tryan2grow1 said:
This could be the start of cal/mag deficiency. Add some calimagic or equivalent to your res. Just my .02 worth. That is where I would start.
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I added some last night to all 4. 1/3 dose. The spots came between last night and tonight. It's only on the one plant too. Bottom two nodes. I may just cut the big 3 leaf node off. I was going to trim it anyhow.
 
Adding extra Ca or Mg when you are already starting to show a deficiency of the other can make it worse. Excess Mg can lockout Ca and excess Ca can lockout Mg. If you are showing a deficiency it's best to just add the element you are lacking.
inducedDeficiencies.jpg

Garden gypsum will add Ca and Epsom salt will add Mg.

That being said, it doesn't look like Ca or Mg yet to me and I use calmag from start to mid flower.
 
Luweedgi said:
Adding extra Ca or Mg when you are already starting to show a deficiency of the other can make it worse. Excess Mg can lockout Ca and excess Ca can lockout Mg. If you are showing a deficiency it's best to just add the element you are lacking.
inducedDeficiencies.jpg

Garden gypsum will add Ca and Epsom salt will add Mg.
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Thanks Luweedgi. I'll take a deep breath and see how they react to know a little better about which deficiency it could be.
 
Scoooter said:
I added some last night to all 4. 1/3 dose. The spots came between last night and tonight. It's only on the one plant too. Bottom two nodes. I may just cut the big 3 leaf node off. I was going to trim it anyhow.
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I would leave it and watch it, while they will eventually die, at the stage your plants are at, they need all the leaves they have for photosynthesis especially if you plan on doing any hard training.
 
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