I had the same thing happen at about 2 weeks on some clones.Mine didn't look quite as bad. I put in some epson salt for mag dificiency and backed off my 400 HPS to 3 feet. It helped a little bit. A week later I got a 400 MH conversion bulb and lowered the light back down to 1 1/2 feet away. They look much better now, I got them in a small drip system. Got pic's in the hydro section. I wish I had of taken pic's of the curling. I have cal mag on the way just in case. what's your PPM and PH. I got northern lights and the dyna grow too.
LOC NAR1958 Reviewed by LOC NAR1958 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