Free
For all the Reef Tank lovers out there i made this simple design to help my mushroom corals attach to the rubble inside unbothered by fish Clean up Crew or excessive water flow , give a timeout to your mushrooms or maybe use has a frag rock for your zoas and other fast growing corals that you dont want taking up space on the rockwork.
Enjoy
0.2mm layer, 2 walls, 100% Infill Make sure its 100% infill or itl float
Names are used only to indicate the source of a result. Polyzon is not affiliated with the listed sites.