I've had my 150 gallon drilled cichlid tank for five years. I made my own filter with Tupperware drawers and plastic pot scrubbers. It's in a Tupperware container sump under the tank. The top drawer has a sheet of polyfil that I replace every other week and the second drawer has my homemade bioballs (pot scrubbers). It has worked great except I keep having to replace the pump about once or twice a year. Our electricity went off tonight and after it came back on the pump was dead. This is my second pump THIS YEAR!! I'm tempted to go buy four waterfall filters and hang them over the back, but I don't think the filtration would be as good as my current setup. I'd love to hear advice and recommendations on pumps. I attached a picture of some of my fish but the pic is sideways. Thanks!