Acanthaster planci, commonly known as the Crown-of-Thorns Starfish, is a large, spiny starfish native to Indo-Pacific coral reefs. This species is notable for its venomous spines and its specialised diet, primarily feeding on coral polyps.
Care Level: This species is recommended for advanced marine aquarists due to its specialised feeding requirements and potential impact on reef systems.
Feeding: Acanthaster planci primarily consumes live coral tissue, which makes it unsuitable for reef tanks containing live corals. In captivity, feeding can be challenging and may require offering coral fragments or specialised diets, though success varies.
Compatibility & Reef Safety: This starfish is not reef safe as it preys on corals and can cause significant damage to reef aquaria. It should be kept only in dedicated systems without live corals.
Handling: Exercise extreme caution when handling due to venomous spines that can cause painful stings.
Tank Requirements: A minimum tank size of 200 litres is recommended to provide adequate space and stable water parameters. Moderate water flow and stable marine conditions are essential.
Placement: Place on sandy or rocky substrate where it can move freely. Avoid placing near live corals or other invertebrates that may be preyed upon.
Origin: Indo-Pacific region.
Maximum Size: Can grow up to 60 cm in diameter in the wild; smaller specimens are available for aquaria.
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