heres an update..
few questions:
Plants this size should be getting how much water and how often?
how do you exactly judge it?
do you water once the soils dry or do you just always keep it moist?
I dont use soil, so I cant help you on a clones water cycle...
I would imagine let the first couple inches of soil dry out before
watering again.
Looks like your getting plenty of light, but you may need some more
ventilation if you want them to grow up strong.
As for your leaves, there not looking to happy...what are you putting in
soil, and in what volume. I would think someone might come along here
and tell you its Mg deficiancy, but I havent used any nutes for my
clones, and there doing awesome...Are you pH'ing your water?