The jewelled blenny, Salarias fasciatus, is a popular marine aquarium fish species in Australasia. Despite being also known as the lawnmower blenny due to its propensity to consume algae growth from rocks and glass, it is principally a detritivore, with plant material making up only 15% of its diet. This species reaches a length of 14 centimetres (5.5 in) TL. The lawnmower blenny is generally regarded as compatible with most other marine fish species and as a group with other lawnmower blennies.
The lawnmower blenny blends in with its surroundings, changing color to hide itself from predators. It stays mostly on the ocean or aquarium floor or on any rock or corals.
A small fish, with maximum recorded size of about 14cm. Body depth about 3.7 to 4.2 in length, head small, branched supraorbital and nuchal cirri. Lip margins smooth. No notch in dorsal fin, dorsal and anal fins attached to base of caudal fin by a membrane. Adult males have elongated anterior rays on the anal fin. Colour variable. Usually olive to brown with dark bars and a large number of round or elongated white spots of different sizes. There are usually dark longitudinal lines on the front part of the body, and small bright blue spots with dark outlines along the rear part of the body.
East Africa and the Red Sea to Samoa and the Islands of Micronesia
Usually seen on shallow reef flats with heavy algal cover.
- Froese, Rainer and Pauly, Daniel, eds. (2013). "Salarias fasciatus" in FishBase. February 2013 version.
- Randall, John E.; Allen, Gerald R.; Steene, Roger C. (1997). Fishes of the Great Barrier Reef and Coral Sea (second ed.). Honolulu: University of Hawai'i Press. ISBN 0 8248 1895 4.
- Algae-Eating Blennies of the Genera Salarias and Atrosalarias
- Lawnmower Blenny, Rockskipper Blenny
- Salarias fasciatus
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