List of marine aquarium fish species

The following list of marine aquarium fish species commonly available in the aquarium trade is not a completely comprehensive list; certain rare specimens may available commercially yet not be listed here. A brief section on each, with a link to the page about the particular species is provided along with references for further information.

These big beauties are considered to be quite hardy, but because of their size may present a significant challenge to the keeper. They need huge aquariums, up to 180 gallons to house one for its entire lifespan. Two angels might be kept in the same aquarium provided it is a large aquarium, they are properly acclimated as juveniles, and they have very different colouring and body shape. However, because all Angelfish have essentially the same diet, mixing them is a feat that should be left to only advanced keepers. None are reef safe, and a potential owner should be aware that they need to have plenty of vegetable matter in their diet. They undergo major changes in colouration while maturing, and unless specified given descriptions are for adult specimens.

Although Dwarf Angelfish are smaller and generally more manageable than their larger counterparts, they still have some specific care requirements. They are omnivores, but plenty of vegetable matter, preferably in the form of macroalgae, should be provided for their grazing pleasure. Their suitability for reef tanks is hotly debated, so add at your own risk. Specimens that have been successfully maintained in reef aquaria include the Flame and Coral Beauty angels. However, for obvious reasons they should not be put into tanks with expensive decorative macroalgae.

...
Wikipedia