The Feather Star (Crinoid) paired with its commensal Crab is a captivating addition to any marine aquarium. These invertebrates form a natural symbiotic relationship, with the crab often found living among the feather star’s arms, providing mutual benefits.
Care Level: Moderate. Feather stars require stable water conditions and specific feeding routines.
Feeding: Feather stars are suspension feeders that capture plankton and detritus from the water column. Supplement their diet with finely chopped marine plankton, phytoplankton, or specialised invertebrate foods. The crab will scavenge leftovers and may feed on small particles.
Compatibility and Reef Safety: This pair is generally reef safe and compatible with peaceful tank mates. Avoid aggressive fish or invertebrates that may harm the feather star or crab. Suitable for reef aquariums with established live rock and stable water parameters.
Water Flow and Lighting: Moderate to strong water flow is essential to help the feather star capture food particles. Lighting should be moderate; avoid direct intense lighting as feather stars are often found in shaded reef areas.
Placement: Position the feather star on live rock or a stable surface where it can anchor securely. Ensure it has access to flowing water to facilitate feeding.
Tank Size: A minimum tank size of 75 litres (20 gallons) is recommended to provide adequate space and water quality.
Adding a Feather Star with Crab pair introduces fascinating natural behaviour and enhances biodiversity in your marine aquarium. Regular monitoring and appropriate feeding will ensure their health and longevity.
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