reeffreak
Reef pro
Sure no eggcrate rack is needed.Even using a foam block thats a little bigger than the area will stay in place.That plastic screening will work too.
I think I got this down, ill have to pick up some egg crate, or... at the hardware store today the guy recommended something to me and I went and checked it out, it was nylon or some synthetic plastic screen, like you would put in a window, but its got no metal in it at all... would that be a good alternative to the eggcrate? Or could I just stuff a bunch of that black foam stuff in between there with out the hassle of gluing eggcrate or other things in there, it would be easier to clean If i could just reach down and pull it out and rinse it out...