had a used 72 gallon used bowfront tank, cycled it, put in live stock, but four months in the bottom seal busted. i saved almost every thing and baught a new 75 gallon. here it is! OH i bought the tank with its old setup, (sump, skimmer, powerheads, live rock, and a sand bed, also came with a royal grama, and a tang) soon i started seeing corals that i tought were dead come to life. and since then ive bought a few corals and they seam to be thriving. all i do is the schedualded water changes and feed rod's food.