looking good so far, and im so glad that you decided to beef up that stand, thats the first thing i noticed.
The main top isn't going to be flushed to the back of the tank. I angled it so water could get to the filter. The filter is also a whisper 30-60 model, so hopefully it'll put off enough movement, and should. After painting it I'm going to do a test run with it and the filter and see how everything does. I'll going to use rocks to hold the piece down and fill with water and check everything.I noticed your HOB filter intake will be behind your background. Are you worried at all about getting good filtration in your tank?
I'll look into that. Do you think an air stone would move enough water?The only problem i see is mechanical filtration. I would suggest getting some kind of pump in the tank to push the water up so that it does not settle on the ground and will get pushed up to the surface where it can reach the HOB filter intake.