I needed to have a way for my guppies to reach the surface in a good way even when the surface of the aquarium is covered with floating plants so i made this.
I used PETG because it was recommended to me when doing things that are going to be in the aquarium.
Depending on your printer you may need to increase the wall count and top/bottom layers i used 4 bottom and top layers and 2 for the wall line count.
You can try having more or less infill but i found that 10% worked fine for me.
I'll probably add more shapes in the future.

Creality

K1

No

No

0,2

10