Threaded end cap to keep fish and shrimp from getting sucked into Python water changer hose. My dwarf neon rainbows love to poke around the end of the hose when I'm doing water changes so I created this after one of them almost went for the surf of his young life.
It fits my python perfectly but you may need to scale up or down a percentage based on your 3D printer tolerances or put elastic/teflon tape between the cap and the python hose just to snug it up so the force of the water doesn't push it off. I've also included a .step file if you want to edit it.
The author marked this model as their own original creation.