Aquarium Sponge Filter

Print the tubes on their Side with supports touching build plate

The other parts can be printed on their end with no support

To make the filter parts, print as infill only and with no walls. No top/bottom layers. Align the filter so the flat size is down during printing. Use 30% gyroid infill. Alternatively don't print this part and just use a regular sponge on each side of the hole tube.

Make sure to use an aquarium safe filament such as food grade PETG if you plan to have live pets in the tank.