I turned my 15gal wet dry/trickle filter into a basic refugium.The skimmer is on the supply side,sump in center, pump on return, remaining space is approx 7" to 8" L x 9 7/8"w x 6"h for sump,to supply the 55gal. I have no choice in the matter i'm strapped for space. Will this work???:confused: