Jack is growing fat

what light and nutes? looks awesome!!!

Thank you! Mars Hydro tsl2000 and fox farm soil. Added little grow big & calmag but seems even smallest bit of added nutrients were causing some nutrient burn so mostly RODI water. Burn also might have been the lights though, had to turn them down and lift them.

Looks like heat stress with the way the edges of the leaf are curling up. So if your temperature stays good(70-82 F) then the problem was your light was to close.... Extreme humidity and overwatering can cause the edges of the leaf to curl up like hers also. I dont see any signs of nut burn. (Yellowing of leaf tips)

The baby looks so lovely! How many inches from the plants' canopy to the light?