i think it's probably heat stress, so if you lowered the temp it should fix it's self....if not maybe underwatering, but i kinda don't think so. see if it gets better now that you have the cooler.
dylan Reviewed by dylan on . Just another newbie needing help Hi, I have recently set-up a grow room. I have 10 plants that are 5 weeks old and 3 that are 4 days old. I am growing some plants in a homemade bubbler and the rest in a drip system. I am using Dyna-Gro Liquid grow plant food 7-9-5 for vegetative growth. Also 3 weeks into growth I overfed and burned some of the plants but they have recovered well. Now, I am having some of the leaves curl up. Looks really weird, not sure if its a deficiency, overfed, too much heat.. not sure. The Rating: 5