Im running an instant ocean seaclone 100 or something like that. It can be either HOB or in sump. I like mine better in sump. Might have been because it hadn't worked itself out yet...but when it was HOB it made a huge mess of my tank.
The reason I am asking is bc my girl wants to turn her 54 corner bowfront and there is very little room. So I am trying to find a small sump , skimmer, pump. . . Having a lot of trouble
You should see my fresh tank . . . Its a 125 gallon. It has a 3ft clown knife, 2 2ft florida spotted gars. And a 1ft river catfish. They eat around 300 fish a week.