The file 'Pico Reef Tank – Protein Skimmer 3D Printer Model' is (stl) file type, size is 87.1KB.
Here a small protein skimmer for a pico/nano reef. I think it would be good till 50 liter. Surely good for a 30liter and down.
The acrylic pipe is a 32mm external and 28mm internal diameter.
