Summary: When one needs to trace tropical reef species he just needs to see the how bright and colored are these fish. These are very colorful and pleasant to look at. They can always improve the sight of an aquarium.
Bettas are beautiful but did you know they're happier in a small aquarium (they make 2.5 gallon ones!) with a heater...in that environment they're active and happy, not slumped and sad like in tiny containers.