I kept some moms in a little cabinet for awhile in little plastic coffee cans (DWC). What ended up working best for me though was to just prune periodically (results in a lot of branching which is good for taking cuttings later) but then would just take a cutting from any that got too big (or woody) and start that plant over again as a little clone. Only had one 23w CFL in the cabinet and kept nutrients low* so growth was slow overall.What if your only using it to pull clones from? Would that make a difference?