Blenny fish is any of the numerous fishes of the suborder Blennioidei (order perciformes) These are mostly small fish found from tropical to cold seas. They  are part of a number of families, with the largest being the Blenniidae and Clinidae.

This species has been famous among salt water aquarium enthusiasts, and is often used to clean excess reef algae. Blennies are generally bottom-dwelling fishes, except for the sabre-tooth clade (Aspidontus) that inhabits the water column.


Blennies have long, sleek bodies, almost looking like an eel or snake of small size. They grow up to 55cm, with long dorsal fins. Their eyes and mouth are relatively large in proportion to the rest of their body. Some have appendages (cirri) in their heads that look like whiskers, or antennas.

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Habitat & Range

The habitats of blennies range from rocky pools to sandy beaches, reefs, and beds of kelp. Many live in shallow water, but some range to depths of about 450 metres (1,500 feet).

Blennies can be found in the Pacific, Indian, and Atlantic oceans, in tropical, subtropical, and temperate waters throughout the world. Divers encounter these fish in the reefs near Costambar Beach and other coastal waters.
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Feeding & Breeding

Blenny fish mostly feed on microalgae (filamentous), also on foraminiferans, detritus, and sand. The species also feast on fish eggs, insects, worms (polychaete), snails, and small crustaceans. Many of these are ingested when the fish eats the algae.

Males blenny may court multiple females, or just one. The male protects the eggs, which can be a common nest for all the females eggs. Their larvae hatch within 7-10 days.

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