Run your rockwool under the faucet for a minute or so, shake out the water, dont squeeze it, soak it in a ph'd 250 ppm nute mix for 30 minutes, shake out the excess, soak it in a new solution for a minute, give it a few shakes to rid the excess, make a little hole and plant the seed, use an exacto or something to pull some rockwool over the seed, cover and put in a warm place, takes a couple days to pop, uncover and put under cfls til you get roots out of the cube(bout 5-6 days with a 3x3, less for a smaller cube), put it in your system and let it fly. Thats how I do it, never failed me