bonbon, I don't know what you mean about drainout on a cappilary mat, and rinsing out. I do soak the rockwool but the water was ph 5.0 and I didn't check it after I took out them out of the water. Thanks for you help and also thanks to jimmy. Willow
willow Reviewed by willow on . ph going up I check the ph everyday and every time I check it, it always is really high. I bring down to 5.5 and sometimes it goes up to 7.0 when I check it the next day. How come? Rating: 5