Colobocentrotus atratus is a distinctive sea urchin known for its unique, flattened shape and strong, durable spines. This species is highly valued in marine aquariums for its efficient algae grazing, helping to maintain a clean and balanced reef environment.
Care Level: Moderate. This species is hardy but requires stable water parameters and appropriate feeding.
Diet: Primarily herbivorous, feeding on various types of algae. Supplement with dried seaweed or specialised invertebrate foods if natural algae is insufficient.
Compatibility: Reef safe and generally peaceful. Suitable for community reef tanks but avoid housing with aggressive fish or invertebrates that may harm it.
Tank Requirements: Minimum tank size of 75 litres is recommended to provide ample space for grazing and movement. Maintain stable water conditions with regular water changes.
Lighting and Water Flow: Moderate lighting and moderate water flow are ideal to mimic natural habitat conditions.
Placement: Place on live rock or substrate where algae growth is present. Ensure secure placement to prevent injury from falling or dislodgement.
Origin: Not Provided.
Maximum Size: Typically grows up to 10 cm in diameter.

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