Kgunge
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My hypothesis is that the LED spectrum is calling for a bit more food than I’m used to growing under HPS/MTH.i have read all of @aquamans coco thread and I’m leaning on this being a LED issue mixed with feeding regime. I have this feeling that I should be feeding more frequently lower EC but this goes against everything I was taught when first learning and for some reason I can’t shake this uneasy feeling off.
Any help or advice would be greatly appreciated
Yeah noticed that too... should be about 400ppm At 0.8 EC if 500 scale.Your EC conversion doesn't add up correctly. 1 EC should be either 500 ppm or 700 ppm depending on the scale, so 0.8 EC on a .7 scale would be 560 ppm.
Besides that, I think increasing fertigation frequency would be beneficial. Check the runoff EC next time you irrigate, it's probably sky high.
Yeah noticed that too... should be about 400ppm At 0.8 EC if 500 scale.
Yeah if anything 600ppm or maybe even 800ppm due to co2. Also a lower humidity and 100% needs to be watered more often with runoff. One concern for me would be the pots not fully filled but none the less they can easily be topped up and roots will form if properly watered.Either scale, 0.8 EC doesn't seem too high, especially for established clones. You think the main issue is underwatering? There may be other issues at hand, but things would probably start to look better if he fertigated daily?
I never used straight coco with perlite before, I use peat and perlite (with 10% coco), but I'm in solo cups and I just started to water everyday from 0.6 EC to 0.8 EC and they are half the size of his plants. I know peat based media can benefit more from dry periods, but coco needs to be saturated everyday once plants are somewhat established, right?
What room temp , rh and LST levels would you recommend for the room then? I thought my problem was the rH being too low sitting at 60 for the most part fluctuating maybe( +\- 5).Yeah if anything 600ppm or maybe even 800ppm due to co2. Also a lower humidity and 100% needs to be watered more often with runoff. One concern for me would be the pots not fully filled but none the less they can easily be topped up and roots will form if properly watered.
Also we will go over some VPD stuff and the reason your leaf temps are a bit higher than normal... by that I mean for LED a 3f difference is a bit of an indication of poor transpiration. It's all related to water stress imo but I can explain how if ya like so you understand my recommendation.
Lockout due to what ? The EC I’ve been feeding at is rather mild. Maybe from not frequent enough feeding but thst will be corrected so with that corrected , next would be environmental. No?Those plants are experiencing lock out, all the VPD and RH and room temperatures are not going to make them any better without first addressing the nutrient issues
Yes absolutely I do. I make about 50gal at a time , liquid nutrients with filtered water and PH solution at the end of the mix to 5.8 phI’m super new compared to aqua man. But I had some of that neon discoloration do to acidic pH. Lock out sets in quick when they have acid poisoning. It’s a simple thing, but do you adjust for pH after adding nutes or before?
My suggestion is remove the dead leaves from the bottom fill the pots up.
Water based on the coco thread runoff values. Absolutely your biggest issue. And record the ph and ppm or the runoff daily. It's likely a bit high on ppm already. Runoff is imperative and so is proper fertigation frequency.
Increase ppm to 600.
Lower humidity to 60%
Lower room temps temporarily to reach 75f leaf temps until they recover.
Reducing lighting for 3-5 days.
My suggestion is remove the dead leaves from the bottom fill the pots up.
Water based on the coco thread runoff values. Absolutely your biggest issue. And record the ph and ppm or the runoff daily. It's likely a bit high on ppm already. Runoff is imperative and so is proper fertigation frequency.
Increase ppm to 600.
Lower humidity to 60%
Lower room temps temporarily to reach 75f leaf temps until they recover.
Reducing lighting for 3-5 days.
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