Bimaculatus Anthias: Male

Pseudanthias bimaculatus

(1 Reviews)

Bimaculatus Anthias: Male

Bimaculatus Anthias: Male

Pseudanthias bimaculatus

(1 Reviews)

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Bimaculatus Anthias: Male Care Facts

Care Level: Moderate
Temperament: Peaceful
Diet: Carnivore
Reef Safe: Yes
Minimum Tank Size: 125 gallons
Max Size: 5 inches
The Bimaculatus Anthias, Pseudanthias bimaculatus, 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 one or two dots on the top fin, a pink head that fades to a vivid red with irregular horizontal pink/purple stripes and a splash of purple on the top fin, while the female displays more of a solid pink body with yellow fins and tail. 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 pretty hardy and can be kept in a reef tank setting with plenty of live rock. 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.

The Bimaculatus Anthias (Pseudanthias bimaculatus): A Splash of Color in Your Reef

The Bimaculatus Anthias (Pseudanthias bimaculatus) is a fascinating and vibrant marine fish species that has gained popularity among saltwater aquarium enthusiasts. This product description will provide comprehensive information about keeping these remarkable fish in your saltwater marine aquarium.  

Habitat and Natural Range of the Bimaculatus Anthias


The Bimaculatus Anthias is native to the Western Pacific Ocean and can be found in coral-rich reefs and rocky outcrops. These fish typically inhabit depths ranging from 10 to 60 meters, making them well-suited for the reef environment.


Reef Compatibility of the Bimaculatus Anthias


This species is considered reef-safe, making it a great addition to your coral reef aquarium. Bimaculatus Anthias are not known to harm corals or invertebrates, making them an excellent choice for a mixed reef setup.


Size and Lifespan of the Bimaculatus Anthias


Bimaculatus Anthias are relatively small fish, with an average adult size of about 5 inches (12 cm). In captivity, with proper care, they can live for 5 to 7 years, providing aquarists with years of enjoyment.


Diet in Captivity for the Bimaculatus Anthias


These fish are carnivorous and primarily feed on zooplankton and small crustaceans in the wild. In captivity, it's essential to replicate their natural diet by offering a variety of high-quality frozen and live foods, such as brine shrimp, mysis shrimp, and copepods. Regular feeding is necessary to maintain their health and vibrant coloration.


Aquaculture and Availability of the Bimaculatus Anthias


The Bimaculatus Anthias are occasionally available through aquaculture efforts, though they may be less common than other species. Availability can vary depending on your location and the stock at your local fish store. It's essential to source them from reputable suppliers who prioritize sustainability.


Compatibility with Other Fish and Invertebrates for the Bimaculatus Anthias


Bimaculatus Anthias are generally peaceful and coexist with other reef-safe fish and invertebrates. However, it's crucial to avoid aggressive or overly territorial species that may harass them. They thrive in the company of their kind and should be kept in small groups consisting of one male and several females.


Sexual Dimorphism of the Bimaculatus Anthias


Male Bimaculatus Anthias exhibit more vibrant and striking coloration than females. Males have a bright red-orange body with two distinct blue spots on their dorsal fin. Females are generally paler in color and lack the intense hues seen in males.


Juvenile to Adult Coloration Changes of the Bimaculatus Anthias


As Bimaculatus Anthias mature, their coloration becomes more pronounced. Juveniles may display less vibrant colors, but they will develop their full adult colors as they age.


Temperament of the Bimaculatus Anthias


These fish are generally peaceful and non-aggressive, making them suitable for community aquariums. However, they can be somewhat shy, so providing plenty of hiding spots and live rock formations can help them feel secure.


Tank Requirements for the Bimaculatus Anthias


Creating the right environment is crucial for the well-being of your Bimaculatus Anthias. Here are the critical tank requirements:

  • Minimum Aquarium Size:

    A tank with a minimum capacity of 75 gallons is suitable for a small group of Bimaculatus Anthias.
  • Water Conditions:

    • pH: Maintain a stable pH level between 8.1 and 8.4.
    • Salinity: Keep the salinity levels at 1.023 to 1.025.
    • Water Temperature: Maintain a temperature range of 75 to 80°F (24 to 27°C).
    • Water Flow: Moderate to strong water flow can mimic their natural reef habitat.

Other Common Names for the Bimaculatus Anthias


The Bimaculatus Anthias may also be called the "Two-spot Anthias" or simply the "Bimac Anthias."


Compatible Tank Mates for the Bimaculatus Anthias


Here are five suitable tank mates for the Bimaculatus Anthias:

  • Purple Firefish (Nemateleotris decora): These small, peaceful fish add elegance to your tank and get along well with Bimaculatus Anthias.
  • Royal Gramma (Gramma loreto): Known for their striking purple and yellow colors, Royal Grammas are generally peaceful and make excellent companions.
  • Fire Shrimp (Lysmata debelius): These colorful shrimp are reef-safe and can help with aquarium cleanup.
  • Cleaner Wrasse (Labroides dimidiatus): They provide a valuable service by cleaning parasites from other fish and are generally compatible with Bimaculatus Anthias.
  • Coral Banded Shrimp (Stenopus hispidus): These striking shrimp can be kept with Bimaculatus Anthias, provided they have ample hiding spots.

Why Buy Bimaculatus Anthias from


When you purchase Bimaculatus Anthias from, you can trust that you are acquiring healthy and responsibly sourced specimens. Our commitment to sustainable practices ensures that you can enjoy these stunning fish while contributing to the preservation of our precious marine ecosystems.


In Conclusion


The Bimaculatus Anthias is an excellent choice for saltwater aquarium enthusiasts looking to add color, beauty, and vitality to their reef tanks. With proper care and attention to their specific needs, these fish can thrive in a well-maintained aquarium. Whether you're a beginner or an experienced hobbyist, the Bimaculatus Anthias is a captivating addition to any marine setup, and is your trusted source for acquiring them.

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