I got the Eshopps 300 gph HOB for my 44 gallon the, the biggest sump I could fit in my cabinet is a ten gallon aquarium I sealed some baffles in, I had to remove slats just to squeeze it in, Luckily I never got a new HOB skimmer before I decided to install a sump, I'm looking for a good in sump skimmer suggestion I had thought about the Octo Extreme 160 but it's awfully big for this set up would appreciate any suggestions Thanks in advance