CARDINAL FISH
We start this list off with a fish that is popular amongst aquarium enthusiasts as a result of their small size, simple (but classy) colouring and their hardy disposition.
In fact, they are one of the few tropical fish that are bred extensively in captivity. Good thing too since the wild population is threatened.
Diver Tip:
The Cardinal Fish is a nocturnal creature who buries themselves deep in the coral reef during the day.