Algae Blenny “Jewel/Starry” — Salarias ramosus

Algae-focused grazer. Perching combtooth blenny. May nip if underfed.

Quick facts

• Size: 12–14 cm

• Temperament: Semi-peaceful, territorial to similar fish

• Reef-safe: Generally; may nip clam mantles or fleshy SPS/LPS if hungry

• Minimum tank: 120+ l / 30+ gal

• Role: Film and microalgae control

Aquarium requirements

• Aquascape: Extensive live rock with constant graze surfaces and perches.

• Water: pH 8.1–8.4, salinity 1.025–1.026, temp 24–26 °C; NH3/NO2 0, NO3 <20 ppm.

• Flow: Low–moderate with calmer shelves.

• Cover: Advisable. Can jump when chased.

Diet

• Primary: Film algae, diatoms, turf; scrapes biofilm with comb teeth.

• Supplement daily: Nori on clip, spirulina/algae pellets, herbivore flakes; occasional mysis/roe for variety.

• Goal: Full belly and steady grazing to prevent coral/clam nipping.

Behavior and compatibility

• Territory: Defends favorite rocks against other blennies and similar-shaped grazers.

• Best with: Peaceful community fish that ignore it.

• Avoid: Other Salarias, lawnmower/starry look-alikes, and very aggressive tankmates.

Acclimation and care

• Mature tank: Prefer systems with visible algae/biofilm. Newly set tanks risk starvation.

• Acclimate: Drip 30–45 min. Offer nori immediately if algae is scarce.

• Health cue: Pinched belly indicates underfeeding.

ID notes

• Dark body with white “starry” speckles, cirri above eyes, robust head profile. Often sold as Jewel or Starry Blenny; distinct from S. fasciatus (Lawnmower).