http://www.amazon.com/Aqueon-Quietf...&sr=8-1&keywords=aqueon+submersible+pump+3000 This is the return pump I've purchased for my sump and it will be here Monday. I'm hoping it will do the job. I have a 65G predrilled tank with a 30G sump. It also has to push water about 5ft up. I couldn't find any charts for this pump online about what the GPH will be adjusted for height. Does anyone know where I could find those for the aqueon pumps or has anyone used one of these around a similar height?