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Chromis are perhaps the ultimate reef fish. Generally peaceful, most species are easy to take care of and quite colourful, that looks beautiful in your aquariums. Like Anthias, they school, but in many cases this tendency disappears as they age. Like Damsels and Anemone fish, their close cousins, Chromis are omnivores and eat almost every food. A flake staple is usually sufficient, but for best color and health, supplement them with frozen and live foods when possible.
The varieties of Chromis for your reef aquarium are:
Black and gold Chromis (Neoglyphidodon nigroris)
There are mostly silver-coloured, but with a large patch of yellow around the caudal fin and a distinct black line on the operculum. They are, however, difficult to handle in aquarium. They can grow up to 13 cm (5.1 in).
Half and half Chromis (Chromis iomelas)
They can also be called black and white fish as these are completely black from the middle of the dorsal fin to the nose and completely white from the middle of the dorsal fin to the end of the caudal fin. They need a moderate care and can grow up to 9 cm (3.5 in).
Black bar Chromis (Chromis retrofasciata)
These are yellowish fish with bright blue iridescent pelvic fins and a distinct black bar at the base of the caudal fin. They can be easily taken care in the aquarium. They just grow up to 5 cm (2.0 in).
Blue Chromis (Chromis cyanea)
These are bright blue all over, which would look scintillating in your tank, although they are lighter toward the front. They have to be moderately cared for and grow up to 13 cm (5.1 in).
Damselfish (Chromis chromis)
They can be easily handled. These are completely black. Despite the name, this is actually a Chromis, in fact, it is the Chromis. They can grow up to 25 cm (9.8 in).
Green Chromis (Chromis viridis)
According to its name, this is generally bluish green, but some specimens may be spring green as well. They can be easily taken care of and can grow up to 8 cm (3.1 in).
Limbaughi Chromis (Chromis limbaughi)
These are dark navy blue coloured fish with bright yellow spot that covers the dorsal fin and much of the posterior. Their care level is moderate. They can grow up to 10 cm (3.9 in).
Spiny Chromis (Acanthochromis polyacanthus)
These can be easily handled. These are dark chocolate brown coloured fish, slightly lighter around the pectoral fins. The can grow up to 14 cm (5.5 in).
Sunshine Chromis (Chromis insolatus)
These are rather drab tannish-orange throughout. They can be moderately handled. They grow up to 16 cm (6.3 in).
Yellow-spotted Chromis (Chromis flavomaculata)
The care level for this fish is moderate and it can grow up to 15 cm (5.9 in).
Black-axil Chromis (Chromis atripectoralis)
These are green-coloured fish. They can be easily handled in your reef tank.
Pale tail Chromis (Chromis xanthura)
They can be taken care moderately and can grow up to 15 cm (5.9 in).