Atrosalarias fuscus

Datasheet

General Description

The Black Sailfin Blenny, also known as Atrosalarias fuscus, is a member of the Blenniidae family. This species is highly sought after for its striking black coloration present on both its body and fins, making it a visually captivating addition to any saltwater reef aquarium. Native to the reefs of Java, this blenny species is recognized for its voracious appetite for microalgae.

Aquarium Suitability

The Black Sailfin Blenny is a herbivorous species that thrives in a peaceful environment with tankmates of similar size and temperament. It is suitable for reef aquariums due to its tendency to consume hair or string algae, but it may nip at small polyp stony corals and clam mantles. It is recommended to provide ample live rock with microalgae growth for foraging.

Demands, Care, and Hardiness

With a moderate care level, this species requires a tank size of at least 30 gallons to accommodate its hiding habits amongst rockwork and inside caves. Providing a variety of hiding spots is essential to ensure the Black Sailfin Blenny's well-being. Maintaining water conditions with a temperature of 24-27°C, pH between 8.1-8.4, and specific gravity from 1.020-1.025 is crucial for their health.

Reef Suitability

The Black Sailfin Blenny is considered reef-compatible, but caution should be taken with small polyp stony corals and clam mantles as they may be nipped at. This species contributes positively to reef ecosystems by consuming algae growth, aiding in algae control within the tank.

Aquarium Setup

When setting up an aquarium for the Black Sailfin Blenny, ensure the presence of ample live rock with microalgae for foraging. Provide hiding spots amongst rockwork and caves to offer the blenny a variety of locations for solitude. Offering a balanced diet including marine and blue-green algae (such as spirulina) is essential for their nutritional needs.

Behaviour

Known for its peaceful temperament towards tankmates, the Black Sailfin Blenny may exhibit territorial behavior towards its own species. Caution should be exercised when introducing multiple Black Sailfin Blennies into the same aquarium, acclimating them simultaneously can help manage potential territorial issues.

Feeding and Diet

Being an obligate microalgae eater, the Black Sailfin Blenny primarily feeds on microalgae but can also be supplemented with vegetable matter. Offering frozen and dried foods containing marine and blue-green algae, such as spirulina, contributes to a well-rounded diet for this species.

Dimorphism and Captive Reproduction

Male Black Sailfin Blennies typically grow larger than females and undergo a succession of color changes during breeding periods. In captivity, successful breeding of this species has been achieved under specific conditions that mimic their natural habitat.

Habitat and Distribution

The Black Sailfin Blenny originates from the reefs of Java, where it inhabits areas with ample live rock and microalgae growth. This species is commonly found in the Indo-Pacific region, showcasing its adaptability to varying reef environments.