PK Perpetual Grow Journal 2020

InTheShed said:
Here's a good article on temperature and cannabis:

The effect of cold on cannabis plants

In this post we show you which methods you can use to avoid the cold in an indoor cannabis crop. There are various modes to keep a stable temperature during the winter so you can choose the resolution that best suits to your indoor or greenhouse crop for personal use.
www.alchimiaweb.com

Along with everything else, it says:
"...low temperatures will detrimentally affect the root system and the uptake of nutrients, particularly in the case of magnesium. This micro-nutrient is vital for the proper development of the cannabis plant and if the substrate is colder than 18ºC then this element is most likely not being absorbed by the plant."
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Bookmarked! Thank you!
 
@InTheShed do you have anything on ph?

i can't seem to get the ph to stabilize and i keep adding TDN ph down. I can understand to needing to adjust every day but every few hours?

I also, brought the ppm on gorilla glue to 144 from 100 ppm.
 
PK, I once advised you that a Blue Lab all in one meter might be a good idea. I have a change of heart...

Smokey and I were talking meters and he stated that he isn't able to calibrate his wall mounted Blue Lab meter's TDS function. He said it comes this way, As a matter of fact, you are unable to replace the probe if you have issues. Personally this is a deal breaker. You should at the very least be able to replace a probe... they arent meant to last forever, so what he is saying is when the probe dies so does your meter. So, I guess i wouldnt buy Blue Lab. Im very glad Smokey spoke up.
 
Stltoed said:
PK, I once advised you that a Blue Lab all in one meter might be a good idea. I have a change of heart...

Smokey and I were talking meters and he stated that he isn't able to calibrate his wall mounted Blue Lab meter's TDS function. He said it comes this way, As a matter of fact, you are unable to replace the probe if you have issues. Personally this is a deal breaker. You should at the very least be able to replace a probe... they arent meant to last forever, so what he is saying is when the probe dies so does your meter. So, I guess i wouldnt buy Blue Lab. Im very glad Smokey spoke up.
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I missed that conversation....i think it's dependant on the model?. I see them for sale all the time....even a quick Google "bluelab replacement probe" shows tons for about 100 bucks. Gonna read some more up on this...ive been saving for a blue lab lol
 
PK said:
@InTheShed do you have anything on ph?
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Not a DWC guy so all I know is it's important in hydro. Sorry! I'd stick with the advice from the folks here who do it all the time.
 
Rexer said:
I missed that conversation....i think it's dependant on the model?. I see them for sale all the time....even a quick Google "bluelab replacement probe" shows tons for about 100 bucks. Gonna read some more up on this...ive been saving for a blue lab lol
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I didn't get into which model he has. Im sure your right.
 
can anyone tell me if this probe replacement

1607119043369.png


would work with this ph meter

1607119079138.png
 
@Stltoed how often do you adjust ph?
i notice i bring mine to 5.8ish and in few hours its at 7.4
i've been phing every two hours or so. is that common?
 
PK said:
@Stltoed how often do you adjust ph?
i notice i bring mine to 5.8ish and in few hours its at 7.4
i've been phing every two hours or so. is that common?
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Well the smart ass answer is whenever I need to. PH is a wierd thing. When my pH is stable it will take about 5 days to migrate from 5.8ish to 6.3 ish (my window). With a new res. full of nutrients, that has Silica in it, I may have to move it down a few times for the first week, depending on the Silica. But that doesn't last long and will stabilize back to the slow migration North. My pH is always on the move if im gonna be honest. When I get to 6.3 I give it 3 teaspoons of pH down and I start over.

One major hurdle that makes your life harder is the volume of water in your rig. I have about 50 gallons. Your having issues I can't explain. pH moving like that is crazy.
 
Stltoed said:
Well the smart ass answer is whenever I need to. PH is a wierd thing. When my pH is stable it will take about 5 days to migrate from 5.8ish to 6.3 ish (my window). With a new res. full of nutrients, that has Silica in it, I may have to move it down a few times for the first week, depending on the Silica. But that doesn't last long and will stabilize back to the slow migration North. My pH is always on the move if im gonna be honest. When I get to 6.3 I give it 3 teaspoons of pH down and I start over.

One major hurdle that makes your life harder is the volume of water in your rig. I have about 50 gallons. Your having issues I can't explain. pH moving like that is crazy.
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My ph is the same until I add water then I always have to bring it up a bit then one week and my ph will raise to6.3.
 
Joshualuck said:
My ph is the same until I add water then I always have to bring it up a bit then one week and my ph will raise to6.3.
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What is the volume of water in your system?
 
I have a veg box which is hooked up to the res and a flower spot that supports 2 buckets. I fill the buckets from the res tank and once a week I hook up everything together and circulate the water.
 
Joshualuck said:
In my res which have live plants and fish 10 gal. In each bucket 2.5 gal
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Sounds like you have your pH basically sorted. What, in your opinion, is going on with poor PK?
 
Joshualuck said:
I have a veg box which is hooked up to the res and a flower spot that supports 2 buckets. I fill the buckets from the res tank and once a week I hook up everything together and circulate the water.
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Mine is always circulating.
 
PK said:
@Stltoed how often do you adjust ph?
i notice i bring mine to 5.8ish and in few hours its at 7.4
i've been phing every two hours or so. is that common?
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You may have mentioned it, but what are you using to lower your pH?
 
Stltoed said:
Sounds like you have your pH basically sorted. What, in your opinion, is going on with poor PK?
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For real I dont think the humitidy is high enough in between the roots and water. In dirt it insulates the roots but in a sec system there is no insulation.
 
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