I condition my rockwool cubes and have no problems with ph
kz1000r Reviewed by kz1000r 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