Golden Sailfin Blenny

Atrosalarias fuscus var.

Reef Safe

The Tongan Golden Sailfin Blenny (Atrosalarias fuscus var.) is a vibrant and peaceful addition to any saltwater aquarium. This curious little fish is known for its active behavior and herbivorous appetite, primarily grazing on marine algae. It showcases a golden to brownish-gold body accented with distinctive black vertical bars or blotches and a graceful, sail-like dorsal fin that adds to its charm. Reaching a maximum size of about 2 inches, this blenny remains relatively small and is ideal for both reef and fish-only tanks. While generally peaceful, it may show territorial behavior in smaller aquariums. The Tongan Golden Sailfin Blenny thrives in mature tanks with established algae growth and benefits from a diet rich in marine algae, with occasional plankton or small invertebrates. With its easygoing care requirements, colorful appearance, and algae-grazing habits, this blenny is a great choice for hobbyists looking to add both beauty and function to their marine setup.

These fish are for saltwater aquariums only.

Due to variations within species, your item may not look identical to the image.

Measurements are measured from the tip of the head to end of the tail. 

For acclimation details see here.