Thanks for the reply. The soil I'm using is a mix of coco and ocean forest from fox farm. The foliar and every feeding I've done has been 1/4 recommend from what's on the bottle and ph'd after to 6 to 6.5 range. I know that soil is strong so all but 2 watering has been plain water. Now I don't think it's heat stress , but possibly wind burn I did have a fan blowing on them non stop non oscillating either for 2 weeks . When this happened I bought a new oscillating fan so that could be a possibility. I will try moving the fan further back. Let's say it's wind burn I would imagine it would recover fairly fast??
leaves that get wind burn never recover but the rest of the plant should grow fine
yeah its a balance just enough to rustle the leaves any more and they can get wind burn, distance helps yes and a down draft is good for keeping the bugs off the plants but an up draft can help cool the plant better
I guess its why you see a lot of 6" and 8" clip fans over bigger fans I like 16" and bigger for moving the air around but they normally need to be set on low if there even 1m near the plants or you set them to blow just over the top of the canape
if its wind burn then it should recover fine
if the soil is too hot then it`ll get worse, I`ve never mixed soil with coco but I have hear people say some of fox farms soil is a bit hot out the bag...