well i havnt set it up yet as i dont need it, but its a ntf i think, on a slight slope with the pump and res below it. the rockwool just sitson the slope taking in the water and nut i take it. heres my link from where i bought it
http://www.basementlighting.com/Merc...Category_Code=

ok so far im germinating my seeds, once they crack im placing 2 in soil with the root facing down, and the other 3 in rockwool, ill place all in a heated propagator and have the light over the top. 2 questions zandor, how do i stop the rockwool from getting light on it, ive heard you cover in a black bag but how bigger hole do u leave at the top so the seed can push thru the top. it has me a little confused. is that the best thing to do. shud i just have it in the propagator but in the dark? until i see the roots? thanks for the help