I have a 46 gallon bow front with a 20 gallon tall sump, the return pump im running now seems to be working just fine, other than its got a real nice hum to it, I put the tank in my room and im trying to figure out if there is another good return pump that isn't as noisy? the pump is actually more noisy than my skimmer. My return pump say that it is a jp-056 if this help any.