The models are printed on PLA, the tanks using transparent PETG
There is no need to print the aquariumlayout.stl file, unless you would rather have a static model where you cannot change the layout. It is included as an alternative if you just want a model to include with a present.
Designed in TinkerCAD
Aquarium designed in TinkerCAD.
The fish, octopus and people are based on other Thingiverse designs, but with added supports to allow them to stand up within the tanks.