What is its maximum size?
Typically grows to approximately 3–5 cm, depending on the individual and the shell it occupies.
Where is its origin and where is it exported from?
Clibanarius rutilus is a marine hermit crab associated with the Indo-Pacific region. It may be collected and exported for the aquarium trade from tropical areas within its natural range.
Is it reef compatible?
Generally reef compatible, with caution. It is an opportunistic scavenger that feeds on algae, detritus and leftover food. However, it may disturb unsecured coral frags or compete with snails for shells and, occasionally, prey on small or weakened invertebrates.
What should I feed it?
Feed a varied diet of algae wafers, marine algae, spirulina-based foods and small amounts of meaty foods, such as mysis shrimp and finely chopped seafood. It will also scavenge leftover food and algae growing naturally in the aquarium.
How many can I keep?
Can be kept in small groups in a suitably sized aquarium, provided there is enough food, space and a supply of appropriately sized empty shells. Avoid overcrowding, as competition for shells and food can lead to aggression.
How compatible is it with other fish?
Generally peaceful with most marine fish and corals. However, it may compete with snails for shells and can be eaten by predatory fish such as triggerfish, pufferfish and larger wrasses. Provide plenty of spare shells to reduce competition.
Water parameters
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Temperature: 23–27°C
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pH: 8.1–8.4
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Specific gravity (salinity): 1.023–1.025
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Ammonia and nitrite: 0 ppm
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Nitrate: Keep as low as practical through good filtration and regular water changes.
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Calcium and alkalinity: Maintain stable reef-appropriate levels to support successful moulting and shell health.