Bicolor Anthias - South Asia

Nemanthias bicolor

(1 Reviews)

Bicolor Anthias - South Asia

Bicolor Anthias - South Asia

Nemanthias bicolor

(1 Reviews)

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Bicolor Anthias - South Asia Care Facts

Care Level: Easy
Temperament: Peaceful
Diet: Carnivore
Reef Safe: Yes
Minimum Tank Size: 120 gallons
Max Size: 5 inches
The Bicolor Anthias, Nemanthias bicolor, is hermaphroditic meaning all are born females, and when needed the dominant female turns into male. They also display sexual dimorphism with the male displaying a vivid violet body with a yellow streak along the back while the female displays more of a lavender color and the same yellow streak. They can be kept as a mated pair, or in a small school of females. Avoid keeping two males in the same tank, as it can lead to extreme aggression.

They are very hardy and can be kept in a reef tank setting with other peaceful tank mates. Diet should include a variety of a steady supply of copepods, frozen mysis and vitamin enriched brine shrimp, as well as high quality flake foods 3-5 times daily. 

Caring for the Bicolor Anthias


The Bicolor Anthias, scientifically known as Nemanthias bicolor, is a captivating marine fish species sought by avid saltwater aquarium enthusiasts. This comprehensive product description will provide valuable insights into keeping these fascinating creatures in your saltwater marine aquarium.


Habitat of Bicolor Anthias


Bicolor Anthias are native to the Indo-Pacific Ocean and can inhabit coral reefs and rocky outcrops. They prefer areas with plenty of hiding spots amidst the coral branches and crevices, as this mimics their natural environment.


Reef Compatibility of Bicolor Anthias


Bicolor Anthias are generally considered reef-safe. They do not exhibit destructive behaviors towards corals or other invertebrates in a properly maintained reef aquarium. However, it's crucial to ensure that your corals and other reef inhabitants are compatible with this species to prevent any potential issues.


Size and Lifespan of Bicolor Anthias


These graceful fish are relatively small, typically reaching a maximum size of around 3 to 4 inches (7.5 to 10 centimeters) in captivity. When well cared for, they can have a lifespan of up to 5 to 7 years, making them a long-term addition to your aquarium.


Diet in Captivity of Bicolor Anthias


Bicolor Anthias are omnivorous and require a varied diet. In captivity, they should be fed a combination of high-quality flakes, pellets, frozen foods such as Mysis shrimp, brine shrimp, and finely chopped seafood. Providing a diverse diet ensures their optimal health and vibrant coloration.


Aquaculture and Availability of Bicolor Anthias


Bicolor Anthias are available to hobbyists through aquaculture efforts, reducing the impact on wild populations and promoting sustainability in the marine aquarium trade. This makes them readily accessible to aquarium enthusiasts who wish to add this species to their collection.


Compatibility with Other Fish and Invertebrates of Bicolor Anthias


These anthias are generally peaceful and can coexist with other marine fish and invertebrates. However, they may become territorial with members of their species, so it's advisable to keep a single male with a group of females to prevent aggression.


Sexual Dimorphism of Bicolor Anthias


Bicolor Anthias exhibit sexual dimorphism, where males and females have distinct physical differences. Males typically display brighter and more vivid coloration, with a pronounced elongated dorsal fin, while females are smaller and have a more subdued coloration.


Juvenile to Adult Coloration Changes of Bicolor Anthias


Juvenile Bicolor Anthias have a more subdued appearance than their adult counterparts. As they mature, males develop striking red, pink, and yellow hues with distinct blue markings, while females retain a more subdued color palette.


Temperament of Bicolor Anthias


These fish are generally peaceful and suitable for community aquariums. They are active swimmers and can add a lively presence to your tank.


Tank Requirements of Bicolor Anthias


To ensure the well-being of your Bicolor Anthias, you'll need to provide them with the following tank conditions:

  • Minimum Aquarium Size: A tank with a minimum of 50 gallons is recommended for a small group of Bicolor Anthias.

Water Conditions of Bicolor Anthias

  • pH: Maintain a pH level between 8.1 and 8.4.
  • Salinity: Keep the salinity level in the range of 1.020 to 1.025.
  • Water Temperature: Maintain a stable water temperature between 72°F to 78°F (22°C to 26°C).
  • Water Flow: Moderate to strong water flow is ideal, replicating their natural reef habitat.

Common Names of Bicolor Anthias


The Bicolor Anthias may also be known by the common names of Two-color Anthias or Bicolored Anthias.


Five Compatible Tank Mates for the Bicolor Anthias

  • Royal Gramma (Gramma loreto): These colorful fish are known for their peaceful nature and can coexist harmoniously with Bicolor Anthias.
  • Firefish Goby (Nemateleotris magnifica): Their vibrant colors and peaceful temperament make them great companions.
  • Cleaner Shrimp (Lysmata amboinensis): These helpful invertebrates can help maintain the cleanliness of your tank.
  • Banggai Cardinalfish (Pterapogon kauderni): A striking and docile species that pairs well with Bicolor Anthias.
  • Clownfish (Amphiprioninae): These iconic reef fish can share a tank with Bicolor Anthias without issues, provided ample space exists.

Why Choose Bicolor Anthias from

  • Quality Assurance: When you select Bicolor Anthias from, you're choosing a reputable source dedicated to providing healthy and sustainably sourced marine life for your aquarium.
  • Expert Support: Our team of experts is available to assist you with any questions or concerns, ensuring a smooth and successful addition to your saltwater aquarium.

In conclusion, the Bicolor Anthias is a captivating addition to any saltwater marine aquarium, offering vibrant colors and a peaceful temperament. They can thrive in your tank with proper care and become a focal point of interest. At, we are dedicated to providing you with top-quality Bicolor Anthias that will enhance the beauty and diversity of your marine ecosystem.

Love this Bicolor Anthias - South Asia! He is so beautiful and such an interesting personality! He doesn't bother anyone and has actually become friends with our yellow wrasse! They swim attached at the hip looking for food! He is a very mellow swimmer who loves swimming through the rock work to find new caves. He is a little hard to feed when competing with quicker eaters, I let a couple pellets sink in front of him and sink a few spirulina flakes)! I highly recommend him, he is sweet, beautiful, and easy!

Reviewed by: Shia M. on Sept. 11, 2021

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