how close are they to the light? what are you feeding them? how big are those pots? which way are the leaves curling?

fill them to within an inch from the top or stale air can stagnate and rot the stem at the soil level. there is a name for this which always seems to escape me.

-shake
headshake Reviewed by headshake on . Update 2 Okay this is my 7 week old plant yes I know what your all saying...thats pretty small looking lol. See I started it out under a 40W bulb so don't judge me -.- lol. Its under 2 T12s 48" now so all has continue to grow. My pictures show my accoplishments on my first grow lol, but I have a question as you see in one of the pics my first set of true leaves are yellow...and have burnt tips...and some of my green leaves seem to be curling slightly but not the very top leaves and I have a deep purple Rating: 5