I have a hob
penguin power filter on there and I even made a half gallon DIY hang on fuge which I'm not gonna use. I want the stash place for my heater and Skimmer and chaeto algae. Plus the extra water volume. I may upgrade to a 350-400 gph
return pump on my sump. Lfs
said 10-15x water volume for a return pump and I wad told ob here by someone that 5-10x water volume is ideal for a 10 gallon sump with my size tank so I dunno. I'm just gonna use the one I got and see how she flows.