Species Description…

Scientific Name: Chromis cyanea

Common Name: Blue Chromis

Species Group: Damselfish

Habitat: Reef Safe

Care Level: Beginner

Temperament: Peaceful

Diet Type: Omnivore

Role in Aquarium: Schooling Fish

Max Fish Length: 5 (inches)

Min Aquarium Size: 30 (gallons)

Native Range: Western Atlantic, including the Caribbean, Gulf of Mexico, and Florida

Chromis Cyanea - The Blue Chromis

Chromis Cyanea (The Blue Chromis)

Native to the Western Atlantic, particularly around the Caribbean and Gulf of Mexico.
Easily identified by its vivid electric blue coloration and streamlined body.
A peaceful schooling fish that thrives in groups and enhances the visual appeal of reef aquariums.
Typically found swimming in the midwater column near coral formations for safety.
Best suited for aquariums with stable water conditions, live rock, and non-aggressive tankmates.

Omnivorous, feeding on planktonic crustaceans, algae, and zooplankton in the wild.
Requires a diet of high-quality marine flakes, frozen mysis shrimp, and vitamin-enriched brine shrimp.
Readily accepts prepared foods and benefits from occasional live food offerings.
Should be fed multiple small meals per day to maintain energy levels and promote health.
A varied diet helps sustain their vibrant blue coloration and overall well-being.

Prefers coral reef environments with moderate to strong water movement.
Frequently seen darting among coral branches for protection from predators.
Aquarium setups should include live rock formations to support their natural schooling behaviors.
Requires high-quality filtration and stable water parameters to thrive.
Providing open swimming areas and shaded hiding spots helps reduce stress.

Optimal water temperature: 74-80°F (23-27°C) for maintaining metabolic balance.
Preferred pH range: 8.1-8.4, with a salinity level of 1.020-1.025.
Requires excellent water quality with routine water changes to prevent disease.
Reef-safe and does not pose a threat to corals or invertebrates.
Providing structured rock formations encourages their natural schooling and foraging habits.

Peaceful and ideal for community tanks with other non-aggressive fish.
Compatible with clownfish, tangs, wrasses, gobies, and other small to medium-sized reef fish.
Thrives in groups of five or more, as solitary individuals may become shy or stressed.
Should not be housed with overly aggressive fish that could cause intimidation or food competition.
Providing plenty of swimming space and coral structures enhances their natural schooling behavior.

An energetic and social species that enjoys open swimming space.
Frequently observed darting between corals and displaying schooling behaviors.
More confident in larger groups, where they exhibit natural movement patterns.
Providing a structured reef environment encourages their active and inquisitive nature.
Over time, they may recognize their caretaker and become more interactive during feeding sessions.