a hydro buddy told me to be sure to always pre-soak the rockwool for awhile (I think he suggested couple days, don't really remember), to get the pH settled ... :smokin:
the image reaper Reviewed by the image reaper on . rockwool ph problems Ive been reading so much about the ph problems with rockwool... is it possible to root the seedlings directly into clay pebbles? I know that it would be much harder to support the plant, and it would also risk light exposure to the roots probably... but does anyone do it? Rating: 5