Acanthaster planci, commonly referred to as the Crown-of-Thorns Starfish, is a large and visually striking marine invertebrate known for its distinctive spiny appearance and vibrant colours. This species is best suited for advanced marine aquarium keepers due to its specialised care requirements and potential impact on reef systems.
Feeding: Acanthaster planci primarily feeds on coral polyps, which means it requires a reef environment with abundant coral to sustain it. In captivity, feeding can be challenging as it may consume live corals, so careful consideration is needed to maintain a balanced reef tank.
Compatibility and Reef Safety: This starfish is not reef safe as it preys on hard corals, potentially causing significant damage to reef aquaria. It should be kept only in specialised setups where its impact can be managed or in systems dedicated to coral control.
Care Level: Due to its specialised diet and potential reef impact, Acanthaster planci requires advanced husbandry skills and a well-established aquarium.
Tank Requirements: A minimum tank size of 200 litres is recommended to provide adequate space and stable water conditions. Moderate water flow and stable water parameters are essential for its health.
Placement: Place the starfish on live rock or coral structures where it can graze naturally. Avoid overcrowding and monitor coral health regularly.
Overall, Acanthaster planci is a fascinating but demanding species that should be kept with caution and respect for its ecological role.



