Well, after a month of owning my little 12 gallon, I became addicted. Decided I wanted a massive tank so I could have the really fun species, a.k.a. blues Pacific tang. And in general, any other species that require large tanks brand new was out of the question due to cost. Started looking around for local guys getting out of the hobby and selling their stuff this 180 gallon tank withstand and sump for 500 needs a lot of cleaning, but it does hold water. I can confirm the guy was still in the process of tearing it down when I went to pick it up. Gave me some of the stuff but not everything which is fair. My question for the group is should I get two return pumps or should I do this one return pump and split it or do I just plumb one side and not have other return going. According to the manufacturers website, it’s 1000 gallons per hour return pump. It is a fixed flow pump, which I’m not crazy about but could do for now.