Sounds like you need to up-pot if roots are coming out the bottom. I'd transplant into 3 - 5 gallon pots at this point.Hey how do I know if I am under or over watering? I am new at this stuff... rooted clones are in 4" pots and I can see a few roots starting to emerge from the bottom. Currently I am giving each plant about 60ml every day but I am not sure if it is enough... Should I be soaking them once a week?