Blue chromis

Chromis cyanea

''Chromis cyanea'', also known as Blue Reef Chromis, or just Blue Chromis is a fish from the western Atlantic Ocean that occasionally is kept in marine aquariums.
Blue chromis (Chromis cyanea) Cozumel, Quintana Roo, Mexico. Jul 17, 2017 Blue chromis,Chromis cyanea,Geotagged,Mexico,Summer

Appearance

A small marine fish that reaches 15 cm in length. It is typically blue with a black margin on its back.

References:

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Taxonomy
KingdomAnimalia
DivisionChordata
ClassActinopterygii
OrderPerciformes
FamilyPomacentridae
GenusChromis
SpeciesC. cyanea