Floating fish portal
thingiverse
I use this floating ring to keep a patch of my aquarium free of aquatic plants so that I have a place to feed the fish. Without this, the plants would cover the entire surface and the fish would be very hard to feed.
Download Model from thingiverse
With this file you will be able to print Floating fish portal with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Floating fish portal.