Internal Aquarium Filter

I wanted a fluval spec aquarium but I didn't want to pay for it and I was bored so I designed these walls to do the same thing.

Just use silicon to seal all the edges, the middle, and between each wall.

For the "pump slide/knob" I used this for a Vivosun 120gph pump. Those pieces just slide together.

For placement, print each upright either on the flat part or the part with the slice down the middle. Infill really doesn't matter, but a low infill will float in water but the walls are fine with whatever. I did 20% on most.