This is a cut and past from a website i go to often
C&P
Sailfin Blenny, Lawnmower Blenny - Salarias fasciatus
Also known as: Jeweled Rockskipper, Jeweled, Rock Blenny
The Salarias fasciatus grows up to 5 inches. The Sailfin Blenny, Lawnmower Blenny prefers a tank of at least 30 gallons with plenty of places to hide & swim. The Salarias fasciatus is a herbivore and likes to eat veggies, herbivore preps. The Sailfin Blenny, Lawnmower Blenny is a medium maintenance fish and may act peacefully toward other fish. Very slim chance it could eat corals. Keep water quality high (SG 1.020 - 1.025, pH 8.1 - 8.4, Temp. 72 - 78° F). The Sailfin Blenny, Lawnmower Blenny is commonly collected from the Indian Ocean.