I had a 100 gallon and I did mine with a sump that I built out of a 55 gallon and had a mag rive push the water back up into the tank. and as for the lighting I had one 400 watt MH that was in the center of the tank 20.000 k and one on each side of the tank that were 150 watt MH on each side that were 29,00 K and I had a canopy that they fit in side. I to used a lot of korella power heads. but I used the larger ones at the bottom of the tank for mor circulation in the bottom of the tank for te circulation and ecerything liked it but you have to use the conners of the tank to do that and you should be just fin.