It's kinda hard to tell from the pics but from the 2nd one it looks like your pots are very shallow? If so that could be the problem. Also are there drain holes in the bottom of them? Like tokalot says it looks like you're overwatering a little too.

Good luck!
hudson88 Reviewed by hudson88 on . 1st grow...how am I doing? Pic 1 is WW. 2 is Aussie Blue, 3 & 4 are unknown bagseed. Thanks in advance for the replies. I am using miracle grow, perilite(sp), tap water and 24/0 12000 lumens t5 @ about 78-81 degrees. Rating: 5