Most likely from the light being too close and heat stress, wouldnt think ph. PeaceMy seedlings are doing the same thing, do you guys think it's a pH issue? I assumed it was caused by my light being too close, I had a blackstar 240w panel about 10''-12' above them. They are planted in FFLW and tiered into FFOF.
I miss my T8's dude, T5s get so hot on the plants and cant get them too close whereas my plants could almost touch my T8's no problems. I see obvious problems with T5's in small enclosed spaces with minimal ventilation, recomend T8's for these situations plus better light spread. IMO the only thing T5's got on T8's is better light penetration.
i relly to the above , what do u feed ? it seems it takes the max n content it can handle ( the deep green color is a bout to explode ! ), if u feed it try lower the amount of it for a week or so , get water of the 6.5-7 range
Dont care what anyone else thinks but dark green leaves are normally heat stress to me, especially when its had very little ferts. Everytime i see heat stress the plant is either dark green or crispy brown, dont ask me why, my plants do it too loads till i bring temps down and then i get a healthy shade of green again. I asked everyone who i might of thought knew the answer or point me in the right general direction but everyone just said they didnt know like i was saying somthing stupid!lol! Still i see dark green when temps go up. Peace
If we just consider Bonjo78's post too, to overfeed with those two feeds you would have had to feed quite a decent amount both times, how much and of what did you feed. Peace
