http://www.amazon.com/dp/B012J9Z61M/?tag=wafishbox-20 this is what I'm using, don't know if its to much for your needs, I'm running 2 350 gal koi ponds and a 125, 85, 75, 65, 50 bow, 40 long ,40 oct and 2 10 gal tanks with half of my valves still unused. all my tanks are on sponge filters + bar air stones. working on adding 30 betta tanks to system