Black-and-gold Chromis

Behn's Damsel ~ Black-mouth Damsel
Yellowfin Damsel ~ Blackmouth Bicolor Chromis

Family: Pomacentridae Picture of a Black-and-gold Chromis or Behn's Damsel, Neoglyphidodon nigrorisNeoglyphidodon nigrorisPhoto © Animal-World: Courtesy David Brough

   This pretty little Black-and-gold Chromis will loose it's black stripes as it becomes an adult. Then it has a brownish body with just it's back third being yellow!

   You will often see the juvenile Black-and-gold Chromis or Behm's Damsel sale in a pet store. They are quite unique and attractive with their black and yellow striping! They are an inexpensive and hardy little fish.

For more Information on keeping this fish see:
Guide to a Happy, Healthy Marine Aquarium

Geographic Distribution
Neoglyphidodon nigroris
Data provided by
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Actinopterygii
  • Order: Perciformes
  • Family: Pomacentridae
  • Genus: Neoglyphidodon
  • Species: nigroris
Black and Gold Damsel Neoglyphidodon nigroris

Report Broken Video
Black and Gold Damsel in the wild.

This video starts out with a yellow juvenile, then moves on to a dark adult with yellow toward the back of the body. Looks like they are inhabiting a Bird's Nest Coral. They become very mean as they grow to their ultimate 5" size, and need a minimum tank size of 55 gallons due to their need to swim about much more than others in their family. Their longer body and forked tail provide them with the speed they need!

Habitat: Natural geographic location:    The Black-and-gold Chromis or Behm's Damsel is found in the Western Pacific and the eastern Indian Ocean. Found at depths between 6 - 75 feet (2 - 23 meters). They inhabit passes and outer reef slopes.

Status:    These fish are not listed on the IUCN Red List.

Maintenance difficulty:    The Black-and-gold Chromis or Behm's Damsel is among the easiest of all marine fish to keep.

Maintenance:    This fish will readily eat all kinds of live, frozen, and flake foods and algae. Finely chopped meaty foods (like brine shrimp) can be fed regularly. It is best to feed small amounts several times a day. In a reef situation they don't really need to be fed very often at all.

Foods:    All kinds. See maintenance above.

Social Behaviors:    Like all damselfish, they can be territorial and aggressive, especially as they get older. Can be kept together and with other larger fish but watch them closely to be sure their aggression doesn't become destructive.

Sex: Sexual differences:    Not Known.

Light: Recommended light levels:    No special requirements.

Breeding/Reproduction:    Some of the damselfish have been bred in captivity. See general breeding techniques under Clownfish on the marine breeding page.

Temperature:    No special requirements.

Length/Diameter of fish:    Black-and-gold Chromis or Behm's Damsel adults can grow to 9.0 cm ( 3.6 inches).

Minimum Tank Length/Size:    A minimum 20 gallon aquarium is recommended.

Water Movement: Weak, Moderate, Strong    No special requirements. Picture of a Black-and-gold Chromis or Behn's Damsel, Neoglyphidodon nigroris

Water Region: Top, Middle, Bottom    Swims at all levels of the aquarium.

Availability:    This fish is available from time to time.

Author: David Brough. CFS.
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