My mistake! I was thinking you had a plain glass tank. Overlooked the fact that it's an Evo! I understand why you're having trouble finding the right pump now.You aren't reading what I'm saying properly mate. I'm not going to explain the entire ergonomics behind the evo 5 and the challenges of finding a return pump for them that is adequate. A wavemaker is not the choice because they are all too strong and too big. So yes the return pump is the thing to change but nothing fits.

