Aquarium Inlet Pipe

Water was leaking due to the original design being too thin. I just made it a bit thicker (I didn't do a good job but it is good enough). The brakes in the 3D model cause the filament to not be straight as shown in the picture but I believe it is a good thing to keep shrimp and fish safe from getting into the filter.

Print it with as many wall layers as you can. I have around 4-5 walls to make it water-tight.

I am unsure what size hose would fit this but it is definitely more than 12mm. I would recommend heating the hose and then inserting it into the inlet.