Blue Reef Chromis

Chromis cyaneus


(3 Reviews)

Blue Reef Chromis
The Blue Reef Chromis brings the serene beauty of the ocean to your home aquarium, showcasing a dazzling deep blue hue. Easy to care for and peaceful, its schooling behavior brings a touch of community to any reef aquarium.

Blue Reef Chromis

Chromis cyaneus


(3 Reviews)

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Blue Reef Chromis Care Facts

Care Level: Easy
Temperament: Peaceful
Diet: Omnivore
Reef Safe: Yes
Minimum Tank Size: 30 gallons
Max Size: 5 inches

The Blue Reef Chromis, Chromis cyaneus, also known as the Blue Chromis, is an active and peaceful fish that generally resides in the top half of the tank swimming in open water. It is a shoaling fish taht is best kept in large groups. They eat an omnivorous diet consisting of a range of meaty foods, and quality herbivorous flake and pellet food. Vitamin-enriched foods will help preserve the Blue Reef Chromis' vibrant blue sheen. The Blue Reef Chromis is an excellent beginner fish and is peaceful an able to cohabitate with most other fish species, corals, and inverts. 


The Alluring Blue Reef Chromis (Chromis cyaneus): A Delightful Addition to Saltwater Aquariums

The Blue Reef Chromis (Chromis cyaneus) is a captivating and vibrant fish that enchants saltwater aquarium enthusiasts with its stunning blue hue and peaceful nature. This delightful species, also known as the Blue Chromis, adds a touch of elegance and liveliness to marine setups. Let's delve into the world of the Blue Reef Chromis, covering its habitat, reef-safe nature, size, lifespan, diet, compatibility, suitable tank mates, tank requirements, other common names, and five compatible tank mates.

Habitat and Distribution of the Blue Reef Chromis

The Blue Reef Chromis is native to the tropical waters of the Caribbean. In the wild, they are commonly found in coral-rich areas and prefer to swim in large schools, creating a mesmerizing spectacle.

Reef-Safe Nature of the Blue Reef Chromis

The Blue Reef Chromis is entirely reef-safe, making it an excellent addition to reef aquariums. They are peaceful towards corals and other invertebrates, and their presence can create a dynamic and colorful display when kept in a group.

Size and Lifespan of the Blue Reef Chromis

Blue Reef Chromis are relatively small fish, typically reaching lengths up to 3 inches (7.5 cm). They can live for several years in a well-maintained aquarium with proper care, providing long-lasting enjoyment for their keepers.

Diet and Feeding Habits of the Blue Reef Chromis

In their natural habitat, Blue Reef Chromis primarily feed on plankton and small organisms in the water column. In an aquarium setting, they eagerly accept a varied diet, including high-quality marine flake or pellet foods and frozen and live foods like brine shrimp, mysis shrimp, and copepods.

Compatibility and Suitable Tank Mates for the Blue Reef Chromis

Blue Reef Chromis are known for their peaceful and sociable nature, making them compatible with many tank mates. They coexist harmoniously with other peaceful community fish, such as clownfish, gobies, wrasses, and small angelfish.

Tank Requirements for the Blue Reef Chromis

When setting up a tank for Blue Reef Chromis, it's crucial to provide ample swimming space and plenty of live rock or artificial reef structures for hiding and exploring. A well-maintained reef tank with stable water parameters is ideal for these dazzling and active fish. They do best in groups.

Other Common Names for the Blue Reef Chromis

Besides the name "Blue Reef Chromis," this species is also known as the "Blue Chromis.”


In conclusion, the Blue Reef Chromis (Chromis cyaneus) is a captivating addition to saltwater aquariums. It's stunning blue coloration and sociable nature make it a favorite choice for both novice and experienced marine enthusiasts. By creating a suitable environment and offering a diverse diet, aquarists can enjoy the beauty and allure of these delightful fish for years to come.

Good size! Acclimated well and is colored up and happy


Reviewed by: Evan Mixon on Nov. 26, 2023

Beautiful Blue Reef Chromis swims in out of the rock formation in the saltwater fish tank. Healthy and energetic after acclimation.


Reviewed by: Orlando Asumata on Sept. 11, 2021

I love this Blue Reef Chromis! Pictures don’t compare to the live fish. The new addition improves my saltwater water aquarium. Everyone loves it.


Reviewed by: Joe Welsch on Sept. 11, 2021

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