Red Legged Hermit Crab

Red‑Legged Hermit Crab (Clibanarius digueti or Clibanarius sp. depending on region)** A small, vivid reef‑safe scavenger prized for its bright coloration and algae‑cleaning behavior. It’s one of the most popular hermits in marine aquaria for maintaining clean substrate and rockwork. 🐚 Identification Common name: Red‑Legged Hermit Crab Scientific name: Clibanarius digueti (Eastern Pacific) or Clibanarius sp. (Indo‑Pacific variants) Appearance: Legs and claws are bright red to orange, often tipped with darker maroon. Eyes are greenish‑black on short stalks. Shells vary—usually small spiral shells with speckled or banded patterns. Body length typically 1–2 cm, depending on species and shell size. 🌊 Natural Habitat Range: Shallow tropical and subtropical reefs, tide pools, and sandy lagoons. Behavior: Constant scavenger—feeds on detritus, algae, and leftover food. Social habits: Often found in small groups; will compete for shells but rarely harm tankmates if well-fed. 🧠 Temperament & Role Temperament: Peaceful but opportunistic—may steal shells from other hermits if undersized. Reef-safe: Yes. Excellent for algae control, especially film and hair algae. Activity: Diurnal and nocturnal; highly active climber and grazer. 🏡 Aquarium Care Tank size: Suitable for nano to large reef systems. Water parameters: Temp: 75–80°F (24–27°C) Salinity: 1.023–1.026 pH: 8.1–8.4 Nitrate: <20 ppm Diet: Natural algae, detritus, leftover food. Supplement with dried seaweed (nori) or herbivore pellets if algae is scarce. Shells: Always provide extra empty shells of various sizes to prevent aggression. ⚠️ Compatibility & Notes Good with: Snails, small shrimp, peaceful fish, corals. Avoid: Aggressive crabs or large predatory fish. Caution: May topple unsecured frags or small coral pieces while foraging. 📌 Quick Summary Size: Up to 1" Temperament: Peaceful scavenger Reef-safe: Yes Diet: Algae, detritus, leftover food Function: Cleanup crew Care level: Easy Origin: Tropical Indo‑Pacific or Eastern Pacific