I usually try to keep my RH at no more than 30% myself,but have had grows in the past that got up to 50% with no ill effects that I could tell. Also make sure to keep the air moving in your area. Good luck buddy.
HTH
P-B
Hey ya'll,I'm polar-bill and I have decided to check you fellas out.I see lots of killer genetics and well....thats what I try to be about,grow the best to smoke the best:stonedsmilie:
Hope to get to know ya'll,good luck and good growing to all