Each tank I have the filter set-up is different, it just depends on the load thats currently in there. On the 165 I'm running a Fluval FX5, Magnum 350, Emperor 400, AC110 and 2 AquaClear 350gph PowerHeads with polishing canisters attached. The PowerHeads and M350 are used for strictly polishing the water. Plus 2 40% waterchanges a week helps too. And Li as far as feeding I thought i told you saturday night, Hikari Cichlid Gold and Hikari Staple pellets. I'm going to need to replace the glass lids soon with acrylic ones its only a matter a time before these savages break the lids during feeding.