Petrochirus diogenes | XXL

Petrochirus diogenes, commonly known as the giant marine hermit crab, is a fascinating invertebrate species prized for its substantial size and active scavenging habits. This XXL variant is suitable for experienced marine aquarists with established reef systems.

Care and Husbandry: Petrochirus diogenes requires a well-maintained marine aquarium with stable water parameters. A minimum tank size of 120 litres is recommended to accommodate its size and roaming behaviour. The species thrives in moderate water flow and standard reef lighting conditions.

Diet: This hermit crab is an omnivorous scavenger, feeding on detritus, leftover food, and small invertebrates. Supplement its diet with meaty foods such as brine shrimp, mysis shrimp, and specialised crustacean pellets to ensure optimal health.

Compatibility and Reef Safety: Generally peaceful towards other tank inhabitants, Petrochirus diogenes can coexist with a variety of reef-safe species. However, caution is advised as it may prey on small, slow-moving invertebrates or compete for shells. It is considered Reef Safe: With Caution.

Special Care: Provide a variety of appropriately sized empty shells to accommodate its growth and shell-changing behaviour. Regular monitoring of water quality and tank mates is essential to prevent stress and aggression.

Origin details are not provided, but this species is commonly found in tropical marine environments. Maximum size can reach up to 15 cm in shell length, making it one of the larger hermit crabs suitable for marine aquaria.