Animals
...IN THE BREEDING SEASON THE COLOURS OF THE MALES CHANGE TO A VERY DARK BLUE AND THAT EVEN THE STRIPES MAY DISAPPEAR?
...the males guard the eggs until they hatch?

SERGEANT MAJOR
Order: Perciformes.
Family: Pomacentridae.
Distribution:
Warm Seas, at Coral Reefs
Measurements:
10 – 15 cm.
Food:
Algae, crustacean, fish and some invertebrate larvae
Special characteristics:
They live in groups.
Status of the species: Not included in IUCN Red List
*Find out this animal in Temperate and Tropical (Tropical Hall) of the Oceanogràfic