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November 23, 2009
Marine Fish
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Blackmouth Chromis
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Blackmouth Chromis
Veterinary & Aquatic Services Department, Drs. Foster & Smith, Inc.

The Blackmouth Chromis, also known as the Bicolor Blackmouth Chromis, Blackmouth Bicolor Chromis, Blackmouth Damselfish, or Behn's Damselfish, is an attractive fish as a juvenile, yellow with two, horizontal black bars. The fish changes color to brown and black with maturity.

As the fish matures, it becomes extremely aggressive towards other fish, causing problems in selection of other fish to add to the aquarium. A 30-gallon tank or larger is suitable in size for the Blackmouth Chromis. It feeds on zooplankton and algae and is prone to disease if proper aquarium management is not practiced.

The diet should consist of a variety of meaty items, frozen preparations, and some vegetable matter.

Like other damselfish, they are generally compatible with: Dwarf Angelfish, Large Angelfish, Anthias, Basslets, Blennies, Boxfish, Clownfish, Goatfish, Gobies, Hawkfish, Hogfish, Parrotfish, Pseudochromis, Puffers, Tangs & Surgeons and Wrasse.

Fish Facts
Name: Blackmouth Chromis (Neoglyphidodon nigoris, Paraglyphidodon nigoris)
Family: Pomacentridae
Range: Indo-Pacific
Size: Up to 5 inches
Diet: Omnivore
Tank Set-up: Marine: Coral or rock, plants
Reef Compatible: Yes
Tank Conditions: 72-78°F; sg 1.020-1.025; pH 8.1-8.4
Minimum Tank Capacity: 30 gallon
Light: High
Temperament: Aggressive
Swimming Level: No specific level
Care Level: Easy
Care Level: Egg Depositor
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Picture(s): Courtesy of Drs. Foster and Smith |
Information provided courtesy of PetEducation.com

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