so heres my sump, sorry for the bad pics but its a 55 gallon sump. so i have my mechanical filtration. Its a styrafoam box with holes drilled in the bottom with filterfloss packed in the box, them it flows througt a sponge, and under the egg crate, on top of trhe egg crate in bio media it flows up through the bip and waterfalls down into the chanber were the pump is, its the same as Uraujoeys sump, heres his video http://www.youtube.com/watch?v=u7kayU6-NGY go to 1:51, this is where I got my idea from. but heres the pics




