Salarias Fasciatus -Algae eating Lawnmower Blenny (Red Fin)

$30.00

The Red Fin Lawnmower Blenny (Salarias fasciatus var.) is a powerhouse addition to any reef or marine community aquarium, blending high-impact aesthetics with essential utility. Featuring a wonderfully cryptic, mottled olive-and-tan body designed to blend perfectly with live rock, this premium regional color variation is elevated by a striking, warm reddish-pink trim along its continuous dorsal fin. It is a master of the "natural algae control" era of marine keeping—serving as a natural biological focal point for the hardscape surfaces. It is a dedicated, highly industrious grazer with a comical, expressive personality, making it a functional cornerstone of a pristine saltwater ecosystem.

This exceptionally hardy blenny thrives in mature, established systems featuring plenty of aged live rock that can support a continuous supply of natural microalgae and biofilm. Known for their blunt faces, wide eyes, and busy comb-like teeth, they spend their days hopping from rock to rock, rasping away at nuisance films. To ensure long-term health, their grazing should be supplemented with high-quality herbivore diets, including spirulina-rich flakes, sinking veggie pellets, and sheets of dried nori seaweed anchored to the rockwork. Ensure your aquarium features a stable rock structure with plenty of small caves and perches where they can back in and monitor their surroundings.

Note: Images shown are stock images and not the actual fish you will receive.

Quick Specs

  • Care Level: Easy

  • Temperament: Peaceful (May show territorial aggression toward other blenny species or similarly shaped bottom-dwellers)

  • Minimum Tank Size: 30 Gallons

  • Diet: Herbivore / Algae Grazer

  • Reef Compatible: Yes

  • Max Size: 4–5 Inches

  • Water Conditions: 72 to 78°F, dKH 8 to 12, pH 8.1 to 8.4, Salinity 1.020 to 1.025

Husbandry Notes

The Red Fin Lawnmower Blenny is a strategic choice for reef hobbyists looking for "unmatched microalgae management" and an abundance of quirky, interactive character. Their specialized mouthparts are built to scrape down green hair algae, film algae, and diatoms, leaving highly visible "lip prints" on the glass as a testament to their hard work. In the context of modern marine keeping, they are widely considered the ultimate "understory utility player" for keeping high-end live rock scapes looking immaculate. For maximum success, avoid keeping them with competing resource-heavy herbivores in very small tanks, and make sure any heavy rockwork is firmly seated on the aquarium bottom so their active perching doesn't cause structural shifts.

Expert Shipping & Logistics

We’ve dialed in the logistics for national Overnight Delivery to ensure your premium marine livestock arrives in peak condition. Every order is packed using professional-grade insulation and climate-contingent heat or ice packs, designed to maintain stable temperatures throughout the journey. We handle the technical side of the move so you can focus on the acclimation. Our protocol is built on getting these active, hardworking fish from the facility to your tank with zero compromise on health or vitality.

The Red Fin Lawnmower Blenny (Salarias fasciatus var.) is a powerhouse addition to any reef or marine community aquarium, blending high-impact aesthetics with essential utility. Featuring a wonderfully cryptic, mottled olive-and-tan body designed to blend perfectly with live rock, this premium regional color variation is elevated by a striking, warm reddish-pink trim along its continuous dorsal fin. It is a master of the "natural algae control" era of marine keeping—serving as a natural biological focal point for the hardscape surfaces. It is a dedicated, highly industrious grazer with a comical, expressive personality, making it a functional cornerstone of a pristine saltwater ecosystem.

This exceptionally hardy blenny thrives in mature, established systems featuring plenty of aged live rock that can support a continuous supply of natural microalgae and biofilm. Known for their blunt faces, wide eyes, and busy comb-like teeth, they spend their days hopping from rock to rock, rasping away at nuisance films. To ensure long-term health, their grazing should be supplemented with high-quality herbivore diets, including spirulina-rich flakes, sinking veggie pellets, and sheets of dried nori seaweed anchored to the rockwork. Ensure your aquarium features a stable rock structure with plenty of small caves and perches where they can back in and monitor their surroundings.

Note: Images shown are stock images and not the actual fish you will receive.

Quick Specs

  • Care Level: Easy

  • Temperament: Peaceful (May show territorial aggression toward other blenny species or similarly shaped bottom-dwellers)

  • Minimum Tank Size: 30 Gallons

  • Diet: Herbivore / Algae Grazer

  • Reef Compatible: Yes

  • Max Size: 4–5 Inches

  • Water Conditions: 72 to 78°F, dKH 8 to 12, pH 8.1 to 8.4, Salinity 1.020 to 1.025

Husbandry Notes

The Red Fin Lawnmower Blenny is a strategic choice for reef hobbyists looking for "unmatched microalgae management" and an abundance of quirky, interactive character. Their specialized mouthparts are built to scrape down green hair algae, film algae, and diatoms, leaving highly visible "lip prints" on the glass as a testament to their hard work. In the context of modern marine keeping, they are widely considered the ultimate "understory utility player" for keeping high-end live rock scapes looking immaculate. For maximum success, avoid keeping them with competing resource-heavy herbivores in very small tanks, and make sure any heavy rockwork is firmly seated on the aquarium bottom so their active perching doesn't cause structural shifts.

Expert Shipping & Logistics

We’ve dialed in the logistics for national Overnight Delivery to ensure your premium marine livestock arrives in peak condition. Every order is packed using professional-grade insulation and climate-contingent heat or ice packs, designed to maintain stable temperatures throughout the journey. We handle the technical side of the move so you can focus on the acclimation. Our protocol is built on getting these active, hardworking fish from the facility to your tank with zero compromise on health or vitality.