IVXX
New member
I have a 90 gallon with a built in overflow, I have a cap 2200 return pump from my sump pushing water back into the tank, it does a pretty damn good job at push water so there is flow in the tank for sure. I have been looking at a pair of Koralia 4s, one on each side of the tank. Just wondering what everyone else's opinions would be on the subject matter. I'm open to all suggestions!