I have a TurboFlotor Multi SL Hang-On Protein Skimmer By AquaMedic and powerheads and about 75 lbs of live rock and the sand bed is about 3". There is no sump. The lights are a T5HO with 3 bulbs: 1 pink(freshwater), 1 white(freshwater), 1 blue(marine) and the other side had a 4 bulb T5HO unit with 2 blue (marine) and 2 white (freshwater) but I just replaced it with a LED fixture. The lights are on for about 10 hours. The macros are prolifera caulerpa, Blue ocho, violet dreams, red bush hayi (red dictyota), gracilaria, dragons breath (halimenia). The fastest growing are the red dicyota and the ocho. I prune the dicyota every couple weeks and every couple months I take the rocks out and use fishing line to tie the ocho to the rock, otherwise it lifts up and impedes the fishes swimming area. I currently have a dogface puffer and a green bird wrasse, a large anemone hermit crab and I feed mysis daily, and sometimes other seafood.