Lookin pretty good I saw that potting soil at home depot after i shelled out 20$ on ff light warrioroh well. did you repot into that same soil I'm guessing that soil doesn't have many or any nutes I would transplant them into a better soil if they are. Just look for something with natural ingredients You might have to buy some perlite and some worm castings or something if it doesn't already have it. Do you have fans hooked up to that? They need fresh air pulled in. In the first couple pics it looks like some of your lights are too far away to really be doing any good I would probably turn some off but it's not a huge deal. I'm guessing that your overwatering most of the pics the soil looks moist let the soil dry out a little bit between waterings or the roots won't be able to breathe. I'm not sure but that's my guess.