I'm considering buying a used (still running) Aquatop 40 aio tank. All my tanks have been big and had sumps or refugiums. The small tanks I've had used HOB filters. I'm downsizing and seriously want to try an aio system. Is the Aquatop 40 a good choice?
BTW, this will be a mostly coral and invert tank, probably no fish.
BTW, this will be a mostly coral and invert tank, probably no fish.