Camposcia retusa
Camposcia retusa
Camposcia retusa


Latin name Camposcia retusa
Common name Decorator crab
Family Majoidea - Camposcia
Origin East Indian Ocean, Indonesia
Max length 10 cm (3.9")

As aquarium fish

Minimum volume 100 l (26 gal)
Hardiness Hardy
Suitable for aquarium Suitable with care
Reef safe Reef safe with caution
Aggressiveness Unknown


  • Soft coral
  • Small crustaceans (Krill, mysis, artemia...)
  • Larger crustaceans (Shrimp, crabs...)
  • Other invertebrates
  • Fish

Some individuals can present problems

Some individuals of this species can find it hard to acclimatize, but others are problem free.


This species is nocturnal and therefore the most active when the light is dimmed or turned off.


Will sometimes cut at the soft coral to decorate themselves, and will in some cases actually eat the it. 

Sometimes they will use rock, algae or similar as decoration. 

Family description (Majoidea)

Most crabs are not wanted in coral aquaria, although there are a few which are either fun or useful.

References and further reading

About references

James W. Fatherree. 2010. Aquarium Invertebrates: Crabs in the Marine Aquarium - Advanced Aquarist - (English)
Ronald L. Shimek. 2004. Marine Invertebrates (PocketExpert Guide) - TFH Publications / Microcosm Ltd. - (English)
Bob Fenner. Crabs For Marine Aquariums? Part 1, Part 2, Part 3 - Wet Web Media - (English)


nocturnal night
Just a moment...
Just a moment...