I have 3 canisters. I bought all three from that "auction site". 2 are the same brand and I would suggest these over the 3rd which is a Jebo. The seller of the 2 I would suggest is called "Bad-dog" and his "auction site" store is called "Aquatics by KR". Look into it. You would only need one of these large canister filters for your tank, unless heavily stocked. They ran me about $55-$60 shipped. They are good quality and filter tremendously. Before I had the three canisters I had 2 Emporer 400 hang on. I will never go back to a hang on filter.