Bruce Banner auto grown hydroponically with ro water, gh 3 part nutes plus cal mag, ph 5.8, ec 1.6, temp 73-77. My leaves gave these spots on them. Seems as some leaves hot them overnight. Any help greatly appreciated
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Looks like Spider mites. Do you have other house plants? You’re going to need to treat all of them. Every 2-3 days for 2 weeks or so. You have to break their life cycle.
If u have a scope looking the leaves at the white parts. R they bugs or just like dust or something. It does appear to be spider mites markings they super suck. Attack them now or u’ll wake up to web covered plants
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It’s not mites, I checked. The spots start yellow and brown as they get older. I was wondering if it’s mold or maybe septoria, nute burn.
Hey @bananablack I also use GH nutrients with my hydroponic grow. But I also use the additional supplements in the advanced feeding from GH. Looks like a calcium deficiency to me.
Can you post a full picture of your plant? I use CalMag with rainwater as well as Armor Si. RO is great but lack these components that are normally supplied in a soil grow. Also I would suggest a root amendment like Hydroguard to protect and supplement grow.
Do you see how the damage is a bunch of little dots arranged between the leaf veins?
Can you take some super closeups of the undersides of some of the damaged leaves? Theyre microscopic little buggers, maybe you missed them.
Ill put a guess in for calcium , but im just learning lol
Doesnt look like my spider mite leaves thank goodness right 
Yah i would say calcium def by looking at the pics
Thanks all, I increased my cal mag. Hopefully that works.
Calcium deficiency is often associated with low Ph. At low Ph levels Ca uptake is impeded.
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