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Hydro Help!
I've been keeping the PH @ 6.1 and I have raised the MarsHydro LED light to reduce heat stress. PPM's are 815.
I need some advice from the masses. Anybody know what could be wrong here?
It could be a lot of things. Knowing what nutes would help. Are you using hydroguard? Do you let the ph fluctuate between 5.5 and 6.5 or do you strictly keep it at 6.1. If you keep it static, dont. Let it fluctuate. I only change ph when it gets below 5.5 or above 6.5. It could be root issue. How do the roots look? What is temp and humidity? The curling of the leaves looks like light or heat stress and the blotchy discoloration could be a phosphorus deficiency ore a ph issue. Here is a link: https://www.growweedeasy.com/cannabis-symptoms-pictures
How do the roots look? Have you noticed any algae forming in the net pots or reservoir? It appears to be an issue with nutrient uptake so if your roots are ok with no evidence of any pathogens in the system I would recommend a full reservoir change and look for improvement in the new growth.
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