The Barrier Reef Chromis (Chromis atripectoralis) is a beautiful and active schooling reef fish closely related to the Blue Green Chromis. It features a shimmering blue-green body with a subtle dark patch near the pectoral fin, adding depth and variation to reef aquarium schools.
Highly active and peaceful, this species is best kept in groups where it will form a dynamic shoal in the water column. Its constant movement and subtle colour shifts make it an excellent choice for adding life and flow to marine aquariums.
Care Guide
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Scientific Name: Chromis atripectoralis
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Common Name: Barrier Reef Chromis
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Care Level: Easy
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Temperament: Peaceful / Schooling
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Diet: Omnivore (plankton, mysis shrimp, brine shrimp, copepods, marine flakes and pellets)
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Reef Safe: Yes
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Minimum Tank Size: 200 litres (larger for groups)
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Water Temperature: 24–27°C
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pH: 8.1–8.4
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Salinity: 1.023–1.026 SG
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Maximum Size: Up to 8–9cm
Feeding
Feed 1–2 times daily with a varied diet including frozen mysis shrimp, enriched brine shrimp, copepods, plankton-based foods, and high-quality marine flakes or pellets.
Aquarium Setup
Provide a mature reef aquarium with strong water flow, open swimming areas, and ample live rock for shelter. Best kept in groups to encourage natural schooling and reduce stress.
Compatibility
Suitable with:
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Clownfish
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Wrasses
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Gobies
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Blennies
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Tangs
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Anthias
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Other peaceful reef fish
Avoid housing with:
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Large aggressive predators
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Highly territorial species in small tanks
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Very small nano setups without sufficient swimming space
The Barrier Reef Chromis is a lively and elegant schooling fish that brings movement, shimmer, and natural reef behaviour to marine aquariums, making it a perfect choice for vibrant community reef displays.
