I just bought a Nero 3 and am wondering if it was a good buy or not. I have a 15g cube, currently has a clown, a pipe organ coral, a Duncan, and zoas. Plan to eventually add a torch, Xenia, rock flower news, and a possum wrasse, maybe lobophyllia, acans or scolymia. Is the Nero 3 a necessity for my tank or is the return pump enough?

