Quote Originally Posted by sxgrower
Here's my advice: throw the rockwook cubes in the garbage!

Go down to any hydro store and get grow plugs. There are a couple of different manufactures, but the plugs are spongy, brown, and kick ass all over rockwool.

Rockwool has PH issues, and tends to retain too much water, a lot of people have problems with them. Plugs don't have those problems.
meh, rockwool is ok, i used some little cubes to start my babies (who have now completely take over my cabinet). IF you make sure soak first, to pay attention to it, keep it moist, and use ph'd water you should be fine