Ya the aquaclear 110 has a large body for a fuge and takes just a couple modifications to make it work. Cpr makes one that would work a lot better, but they do cost more, the largest one holds about 5 gallons from what I understand. I am building a nano reef out of a 20H right now, but I'm having another 20 gallon fuge that will sit above it on the other Side of the wall in the closet, so instead of pumping to the tank from the fuge it will have the pump in the main tank. I also have enough room then to put almost any skimmer I want and everything other then power heads and a "overflow box". Leaves me more room for corals and less ugly pieces of equipment.