Lawnmower Blenny - Central Pacific

Salarias fasciatus


(12 Reviews)

Lawnmower Blenny - Central Pacific

Lawnmower Blenny - Central Pacific

Salarias fasciatus


(12 Reviews)

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Care Facts

Care Level: Easy
Temperament: Peaceful
Diet: Herbivore
Reef Safe: Yes
Minimum Tank Size: 30 gallons
Max Size: 5 inches
The Lawnmower Blenny, Salarias fasciatus, features a brownish color with various spots making them excellent at camouflage. They are hardy and can be housed with other peaceful fish in a reef tank setting, but may become territorial towards other blennies, gobies or dartfish in smaller tanks.

This blenny is known as a rock skipper and has incredible jumping abilities, so having a tightly secured lid is suggested. Diet should include a variety spirulina, marine algae, seaweed and algae based foods 2-3 times daily.

The Hardy and Helpful Lawnmower Blenny (Salarias fasciatus) in Saltwater Marine Aquariums

About the Lawnmower Blenny

The Lawnmower Blenny ( Salarias fasciatus) is a hardy and beneficial addition to saltwater marine aquariums. With its unique appearance and algae-eating behavior, this species of blenny can add a touch of character and practicality to any reef environment. Let's delve into various aspects of the Lawnmower Blenny in the marine aquarium setting.

Habitat and Range

Habitat: The Lawnmower Blenny is native to the Indo-Pacific region, including the Red Sea and the western Pacific Ocean. In the wild, they inhabit rocky shorelines and coral reefs with abundant algae growth.

Reef-Safe Behavior

Reef Safe: The Lawnmower Blenny is reef safe and considered peaceful. They are primarily herbivorous and help control algae growth in the aquarium.

Size, Lifespan, and Diet

Size: The Lawnmower Blenny can grow to about 4 to 5 inches (10 to 13 cm) in length.

Lifespan: With proper care, they can have a lifespan of several years in a well-maintained aquarium.

Diet: The Lawnmower Blenny is an algae eater, feeding on various microalgae and macroalgae. They require a steady algae supply in captivity to maintain their health and well-being.

Aquaculture and Availability

Aquaculture: The Lawnmower Blenny is readily available in the aquarium trade, and captive-bred specimens are available. Captive-bred individuals are preferred for their adaptability and resilience.

Compatible Tank Mates

Compatible Tank Mates: The Lawnmower Blenny can coexist with various tank mates that add diversity and charm to the aquarium.

Examples of Suitable Tank Mates:

Tank Requirements and Other Common Names

Tank Requirements: The Lawnmower Blenny thrives in a well-established aquarium with plenty of live rock and rocky structures for hiding spots and algae growth. Adequate lighting and a healthy algae population are crucial to meet their dietary needs.

Other Common Names: In addition to the name "Lawnmower Blenny" or "Salarias fasciatus," this species is also known as the "Algae Blenny," "Sailfin Blenny," or "Jewelled Rockskipper."

In Conclusion

In Conclusion: The Lawnmower Blenny ( Salarias fasciatus) is a hardy and practical addition to saltwater marine aquariums. Their algae-eating behavior helps maintain a healthy and balanced environment, benefiting the tank's overall well-being. Aquarists can enjoy the character and usefulness of these charming blennies in their underwater havens by providing them with a suitable environment and compatible tank mates. With proper care and attention, the Lawnmower Blenny can thrive and become a focal point of admiration in any saltwater marine aquarium.

Got this little guy on 06/29/16, what a fun little fish he zooms all around the rocks, has gotten a really fat belly on him now and he is fast as lighting. This is a nice addition to my tank and I enjoy all his personality. FYI he really enjoys copepods!!! so you might add some if you don't already have them.


Reviewed by: Tonya Nance on Aug. 7, 2016

Received a large healthy lawnmower. This guy will put a smile on your face! Not only does he munch on algae and kiss the glass but he will keep you entertained! He reminds me of a Dr Seuss character. :)


Reviewed by: Lora Stroud on Jan. 15, 2016

These are fantastic fish. Mine has been munching along the tank. A must have fish.


Reviewed by: Michelle Denson on July 9, 2015

Received a very healthy specimen, very happy with this guy


Reviewed by: Michael Johnson on May 24, 2015

This fish is awesome love watching him work. Very healthy fish and full size


Reviewed by: James on Feb. 4, 2015

I got one for each of my tanks and they are a blast! Great personalities and started attacking the algae right away. If you have room a must get for their antics.


Reviewed by: Rob N on Jan. 29, 2015

Tiny lititle guy, but fits right in. Will hopefully help the rest of the clean up crew I employ to keep my DT looking as best as possible with as little extra help from me as needed. I like to let nature work on my side.


Reviewed by: Paul Artman on Jan. 8, 2015

My lawnmower blenny arrived healthy. it has been very active since i got it and is very friendly


Reviewed by: Keith S. on Jan. 6, 2015

Algae eater! Before I added my Lawnmower, my tank had waves of green hair algae. He took to task immediately- transforming my tank back to the clean look it had in the early stages. I have never seen him eat the prepared foods I put in the tank for the other fish, it appears to me he only eats the algae growing. In addition to his functional nature, he adds a lot of character to the tank-as he perches, hops and stares at you with this cartoon look. The only knock I have on this guy: he is currently chasing around my new Clown Goby, who also likes to perch in the crevices of rock. Otherwise, he has been a perfect tank mate to the others and even survived a bully clownfish I had, who killed 5 other new costly additions. I guess the Clownfish couldn't get to the blenny in the rocks and gave up. Quick Summary: This is a very cost effective and easy fish, that should be considered a staple in any tank.


Reviewed by: Brad on Dec. 10, 2014

Took to tank immediately and started munching on the rock for algae....now after about 2 weeks he has really developed a personality and is quite the character...he still eats on the rocks some but mainly swims to the front rock when I walk up and sits there watching me and waiting for the flakes and mysis to get dropped in. Probably the most "intelligent" fish I've owned...he already knows the schedule and recognizes the difference between me and my wife walking up to the tank...she doesn't do the feeding and he ignores her!


Reviewed by: Joe Gardner on Dec. 4, 2014


Reviewed by: Gavin Jackson on Nov. 13, 2014

I love my Blenny! He took to my tank like a fish to water (I know, that metaphor is compounded) and he has been fat and happy ever since!


Reviewed by: Geoff C on Sept. 1, 2014

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