This setup was transfered from a 12 gal nano tank, which was setup Jan of 07. Filtration consist of a 20gal Refugium, Aqueon hand-on filter( using carbon and bio filtration), protein skimmer, refugium and live rock. I have a couple of clowns, blenny, damsel and dartfish. Only one coral at the monent a real nice red Mushroom. I'm looking to up grade my tank to a 56 gal tank which has the same footprint as my 20gal. So I'm holding off on adding more critters to my setup at this time and working growing more coraline algae and expirementing with different feeds.