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Cushion star (Culcita novaeguineae)
AI illustration, not an ID reference

Cushion star

Culcita novaeguineae

InvertebratesSaltwater

Care level
Moderate
Temperament
Peaceful
Reef safe
No
Recommended tank
400 L
Maximum size
30 cm
Temperature
24–27 °C
pH
8–8.4
Diet
Carnivore

Care at a glance

The cushion star hardly looks like a starfish: its arms are so short that the animal resembles a thick, pentagonal cushion. Juveniles are still clearly star-shaped and are often sold without a word about how big they get.

In the wild it mainly eats stony corals, and it does the same in an aquarium. So it does not belong in a reef tank. Anyone who wants to keep one needs a large fish tank with plenty of live rock, and should target-feed it with mussel, shrimp and other meaty food.

Good to know

  • Preys on shrimp and snails
  • Outgrows most home tanks

Best not combined with

Related species

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Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.