Hello Rastagal Tap water should be fine, that's all mine get.
One thing I do do (do do looks weird) is I fill a watering can and let it stand to the growroom temprature before I water them with it

Mind you right now I'm supprised I'm not breaking the ice off it, if I start another grow straight away I must get some parrafin in for the heater.

love mand xxx
mand Reviewed by mand on . is this growth ok is this growth normal for 4 weeks, im feeling it may be a bit small. it is an indica, but still, is is smaller than average? Rating: 5