Have you guys ever seen this..?

I have no idea what is happening to some of my ladies.. brown sides/edges and folding up like a canoe?? I was thinking maybe light/heat stress? I had my T5 8 bulb about 2" at first and it was pretty hot.. but now I have a fan and temps at 79

What type of soil, what nutrients and how much are you using?
Do you have a pH reading of your soil? Best wishes.

looks like nute burn, or some toxicity? What do you feed them. Got any more details on what you're doing with them

it looks kinda like you maybe got too much of this and not enough of that. What "this and that" is the question

The T5 (4' 8 bulb) was 2" from canopy at first, now it is about 8" away.

I am in a soil mix (perlite,vermic,peat, worm castings and lime)

I was feeding 5ml calmag/ gallon and Pure Blend metabolic grow @ 1TBS with every watering.

I haven't seen any new growth in over a week! are they dead? I think they got fried because of the high heat of the t5, I didn't have a fan blowing the heat away

Wouldn't say they are dead but very well could be at a halt due to whatever the problem/problems is. The pic of the one leaf yellowing/browning cupping/curling up is a sign of heat stress yes but I would also check your PH levels in soil and figure out if your nutrient/fertilizer is causing a problem if your using any. If so may have a nute lockout of some sort.
Hope you figure it out

ChoppedGreens said:

I have no idea what is happening to some of my ladies.. brown sides/edges and folding up like a canoe?? I was thinking maybe light/heat stress? I had my T5 8 bulb about 2" at first and it was pretty hot.. but now I have a fan and temps at 79

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Did you add water to your nutes?

Looks like a pretty good burn there. I'd flush them with ph'ed water for a week. Nice looking grow going too! Good luck. Peace