My in wall 55gal with 10gal overhead sump, I use a Rena filstar canister to take from DT and pump up to 10 gal sump and gravity back into 3 corners of DT , Lighting-24" Current USA Marine led, Kessil A350w,Kessil A80 ,and Dual T5HO, will be adding one more Kessil A80 soon, few corals , Fish- 1 Coral beauty,2 clowns, 1 blue/yellow damsel, 1 lawnmower blenny.