Porcelain Anemone Crab

Porcelain Anemone Crab (Neopetrolisthes sp)

Scientific identification is incomplete. Confirm the exact species and source conditions before making permanent housing or compatibility decisions.

Appearance & Behavior

Feathery feeding appendages collect fine suspended food. Large flattened claws are used in defense, but this is not primarily an algae-eating clean-up crab.

Quick Care Guide

• Care level: moderate; targeted feeding and sheltered habitat required.
• Adult size: approximately 1 inch carapace width.
• Minimum aquarium: At least approximately 10 gallons for one animal with dependable targeted feeding.
• Diet: suspension feeder with supplemental omnivory.
• Reef compatibility: generally coral-compatible; assess space and small-animal interactions.
• Temperature: approximately 72–78°F for suitable tropical stock; confirm source conditions.
• Specific gravity: approximately 1.023–1.025 for suitable marine stock; match confirmed species requirements and maintain stability.
• pH: 8.1–8.4.
• Alkalinity: 8–12 dKH; prioritize stability.
• Habitat needs: protected perches with a suitable food-bearing current.

Aquarium Setup & Compatibility

Provide a fully cycled marine system with stable salinity, effective filtration, good oxygenation, and guarded intakes. Offer suitable perches with moderate distributed flow and sheltered areas, not stagnant pockets or direct pump blasts. An anemone is not automatically required or advisable; a host may add care and compatibility risks.

Protect against aggressive fish and crustaceans; territorial disputes can occur around a favored perch or host. Avoid triggers, puffers, predatory wrasses, and other crab-eating animals. Keep stocking conservative and do not assume unfamiliar individuals form a compatible pair.

Reef & Invertebrate Compatibility

Usually leaves healthy corals alone, but host or perch defense can affect nearby animals. Its filtering role is not a guarantee of harmlessness in every setting.

Feeding

Provide appropriately sized suspended marine foods, including suitable zooplankton or filter-feeder preparations. Gentle targeted feeding in a moving water stream helps establish intake; do not blast food directly into the animal. Supplemental tiny meaty portions may be accepted. Strong-looking fan activity does not prove the aquarium provides enough nutrition.

Offer controlled amounts at a frequency suited to the species and condition, and confirm actual intake rather than assuming scavenging supplies enough food. Deliver food near shelter when needed and remove leftovers promptly. Do not overstock a clean-up crew according to a fixed number per gallon or add excess food simply to support unnecessary animals.

Introduction & Long-Term Care

Acclimate carefully to temperature and salinity using a method suited to transport conditions. Transfer in a suitable container where practical, avoiding damage to legs and appendages. Do not pull an animal from its shell or refuge, and keep fingers clear of claws.

Allow undisturbed molting shelter and do not remove an old exoskeleton from the animal by force. An empty molt can resemble a dead crab; check before assuming a loss. Monitor feeding, movement, injuries, and the ability to reach food and refuge. Seek experienced aquatic-veterinary guidance for persistent weakness, food refusal, or repeated molting problems.

Maintain appropriate mineral balance through testing and balanced marine care. Do not dose iodine or other additives blindly. Avoid copper-based treatments and verify medication suitability for the animal before use. Stable water quality and appropriate long-term nutrition matter more than a clean-up crew label.