hey well my leaves somtimes seem to be curling up and it worries me.. whats up with it... INFO... i water every day when it looks/feels dry, the grow box is not to hot there a fan blowing air in and a top fan blowing hot air out... last friday.. *todays monday here* i gave my plant 1/4 strength Schultz liquid food 10-15-10.. and umm... i got 2 cfls on it right now..
Please tell us the exact temperature of the room and what strain it is. What type of soil is that? Are you aware the fert you are giving it is meant for flowering? Are they on 12/12 lighting? Use 15-10-10 for veg. You can try the Epsom Salt at about 1 TSP per gallon of water. Get it at Wal-Mart in the pharmacy section. I am leaning more towards heat stress than Mag deficiency but, can't be sure yet.