Lawnmower Algae Blenny - Salarias fasciatus

The Lawnmower Algae Blenny is a popular saltwater fish known for its algae-eating habits, making it a valuable addition to reef tanks and aquariums with algae problems. Its unique appearance and lively personality make it a favorite among aquarists who need a natural solution for algae control.

Description:

• Common Name: Lawnmower Algae Blenny, Mower Blenny

• Scientific Name: Salarias fasciatus

• Family: Blenniidae

• Size: Up to 4 inches (10 cm)

• Coloration: The Lawnmower Algae Blenny features a distinct coloration, with a base color of brown or gray, often mottled with darker markings. Its body is slightly compressed, and it has large, expressive eyes and a blunt head. The fish’s tail fin is often rounded, and it possesses a set of sharp, comb-like teeth designed for scraping algae from surfaces.

Native Region:

The Lawnmower Algae Blenny is native to the Indo-Pacific region, particularly found in Hawaii, the Philippines, and parts of Indonesia. It inhabits coral reefs, rocky outcrops, and shallow lagoons where algae grow abundantly.

Aquarium Setup:

• Tank Size: Minimum 30 gallons (113 liters), but larger tanks are preferred for optimal swimming space.

• Substrate: Sand, fine gravel, or rock structures where the blenny can graze and find algae to feed on.

• Live Rock: Live rock is highly beneficial, not only for providing algae to feed on but also for creating natural hiding spaces for the blenny.

Water Parameters:

• Temperature: 72-78°F (22-26°C)

• pH: 8.1-8.4

• Salinity: 1.023-1.025 specific gravity

• Hardness: 8-12 dKH

Care Level:

• Difficulty: Easy to moderate. The Lawnmower Algae Blenny is a hardy fish that can adapt to a variety of tank conditions, but it requires a stable environment and sufficient algae growth to thrive.

• Diet: While the Lawnmower Algae Blenny primarily feeds on algae, it may also accept prepared foods such as algae wafers, seaweed, and other vegetable-based offerings. It is an excellent choice for managing algae growth in tanks that may have an overabundance of algae.

• Behavior: The blenny is peaceful but can be territorial, especially with other similar-shaped species. It is often seen grazing on rocks, glass, and other surfaces, using its comb-like teeth to scrape off algae. It has a curious and active personality, often interacting with its environment and exploring the tank.

Reef Compatibility:

• Reef-Safe: Yes, the Lawnmower Algae Blenny is generally considered reef-safe. It does not harm corals and is a natural algae eater, helping to maintain a clean environment in a reef tank.

Tank Mates:

• Suitable Companions: The Lawnmower Algae Blenny is peaceful and works well in a community tank. It can be kept with other peaceful species such as clownfish, wrasses, and other small reef fish.

• Avoid: Avoid keeping it with aggressive or overly territorial fish, especially other blennies or tangs, as they may compete for space and territory.

Additional Tips:

• Algae Source: The Lawnmower Blenny’s primary diet is algae, so ensure there is a steady supply of algae in the tank. If algae levels are low, supplement the blenny’s diet with algae wafers or nori.

• Tank Setup: Provide plenty of rocks and crevices for the blenny to explore and hide in. It may also use these areas to rest when it is not actively grazing.

• Territorial Nature: While the Lawnmower Algae Blenny is generally peaceful, it may become territorial, especially with other algae-eating species. Provide plenty of space and hiding spots to reduce territorial disputes.