The design is simple but elegant and will fit in any room - installed in the kitchen at ease with myself.
You can put a fighter (Betta Splenden) who will live there happily.
Attention, however: the pump has a volume FORT, if you use it for a Betta, think cutting the foam filter (some) and put it in the pipe near the pump outlet to reduce the flow. This will slightly reduce its dared to hope of life, but your fish needs.