Stress at the top of the canopy. Is this heat stress, light burn, or a combo? Something else?
Temp in the tent hit 92.5 F at one point, but it's been high 80's in the tent and the leaf surface temp's have been low 80's.
Light was 14 inches at one point but now 24 inches
Solved
Leaves. Color - Red or pink
Leaves. Color - Pale