Thx Mike, yeah, it takes a bit of tweaking to get the level thing just right.

I only have one tiny piece of live rock but it was engulfed by cyanobacteria at one point and now green jelly like algae so I think any coraline algae is gone. I do know I need more live rock.

I do not have live sand nor do I ever intend on getting that. I had a pest problem in the past with it.

Mine does not have a sponge, the instructions kept talking about one but I never saw it. Mine came with a bubble trap tube.

I have had it over flow twice but thats because my tiger cowrie (fist sized) covered up the discharge. I turned the discharge to face the glass so it would not be able to cover it up but somehow it did it again (I know it was the snail because that area had been freshly cleaned by it).

Thats my only beef with the filter, any invertabrate that can cover the discharge will cause major problems.

I also don't have a sump because I have not found a website that describes how to do it. I imagine I can set up one tube from my tank to siphon water to the sump but then how will I get the return just exactly right. Too strong of a pump and the sump will run dry and burn up the pump and cause overflow. Not enough drainage from the pump and the sump will eventually fill up and cause overflow. Mabye I should just start a topic asking how this is done.