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The Lawnmower Blenny, also known as Salarias fasciatus, is a unique and fascinating addition to any saltwater aquarium. Originating from the Indo-Pacific region, they are known for their distinctive appearance and helpful behavior in maintaining algae growth.


Lawnmower Blennies have a slender body with a brownish-green coloration and a series of horizontal stripes. They are known for their large, bushy appendages that resemble eyebrows and their comb-like teeth that they use to scrape algae from surfaces in the aquarium. They are also active swimmers and will appreciate plenty of hiding places and open swimming areas.


These herbivorous fish require a minimum tank size of 30 gallons with plenty of live rock and other aquarium decorations. They are generally peaceful but can become territorial towards other blennies and similar species. They are also known to jump, so a secure lid is recommended.


The Lawnmower Blenny is easy to care for and will eat a variety of foods, including algae-based pellets, spirulina flakes, and fresh vegetables. They are a valuable addition to any saltwater aquarium, helping to control algae growth and providing an interesting behavior to watch.


Water Parameters:

  • Temperature: 72-78°F
  • pH: 8.1-8.4
  • Salinity: 1.020-1.025
  • Calcium: 380-450 ppm
  • Magnesium: 1200-1350 ppm


Please note that these are general guidelines, and for more accurate values, we encourage you to contact Living Aquarium by phone or in person. Within store hours, our team of experts are always happy to answer any questions you may have and provide personalized guidance on care.

Lawnmower Blenny

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