I said test the ro water because ive noticed that most (RO) water bought at store says or distilled which freaked me out idk if theres a dif but i want ro water.
I wouldn't want those kinda stones in a crs tank.
ph is a issue with the ro water and its low kh and gh could cause tank to swing to high ph with those kind of stones. idk but lower kh and gh is more susceptible to ph swings
Last edited by pirayaman; 01-30-2013 at 01:13 PM.