Unless your not concerned about having water on your floor I would skip the Odyssea cfs 500. I had one on a 55 gallon tank and it leaked so I tightened the lid a little more until it stopped leaking, that night the whole lid failed and pumped half my tank onto the floor. After reviewing the photos the forums consensus was that I had over tightened the lid. It's a damned if you do, damned if you don't filter. The plastic that the lid is made out of is SUPER cheap, it was flaking in my hand while I was examining the broken pieces.
If you do go with the CFS500, a few tips. (1) Use the shut off valve on the intake to restrict the flow to a little less than the pump can return, this will help relieve the pressure on the lid. (2) Go down to the hardware store and get some washers and foam pad to place on the lid nuts to help disperse the pressure. It's what I did on the replacement lid that I was sent, unfortunately the second lid was not a good fit and and no matter how I tightened it it leaked, so I couldn't use it. Ended up picking up a pair of AC110s for $30 ( I know 1 is over kill on a 55, but damn if I was gonna pass up $15 AC110s)
I know that it hurts to spend a ton of money on good filters, but $200 spent now might save you thousands in floor repair later. Especially when your talking about canister filters that are pumping water out of your tank. Of course if it's in a garage or an unfinished basement where it's just gonna make a mess on a cement pad, go for it and report back.
) ammonia went away.
