Aquarium Filter - Air Powered

thingiverse

The new design also includes a air diffuser. It is better to have a net at both bottom and top(lead) of the container. In order to design the net simply use zero solid layer at bottom and top. The size of the Net holes then can be adjusted with the infill density. I used 30% density in the pictures. If you use net at both side two pieces of sponges should be used one below and one above the outlet air pipe guide.