Common name: pin-cushion sea star

General information

The Cushion Star, Culcita novaeguineae, is a distinctive species of starfish found in the Indo-Pacific region. Unlike typical starfish, the Cushion Star has a puffy, pillow-like appearance due to its short, stubby arms and inflated body. Its coloration can vary widely, including shades of brown, green, and yellow, often with mottled patterns that help it blend into its surroundings.

Care

Culcita novaeguineae requires a spacious aquarium with a sandy bottom and plenty of live rock to explore and forage on. They are generally peaceful and can coexist with a variety of tank mates. However, they may prey on small invertebrates and sessile organisms, so they should be monitored in a reef tank setting. Stable water quality and parameters are crucial for their well-being.

Reproduction

Reproduction in Cushion Stars is typically sexual, with individuals releasing eggs and sperm into the water column for external fertilization. In the aquarium, breeding is rare, but with optimal conditions, it is possible to observe larval development.

Symbiosis

While Culcita novaeguineae does not have notable symbiotic relationships like those seen in clownfish and anemones, its presence can contribute to the overall health of the aquarium by helping to control algae and detritus levels.

Habitat

The New Guinea Cushion Star is commonly found in shallow waters, on sandy bottoms, and around coral reefs. They are adept at camouflaging and can often be seen partially buried in the substrate. Their range extends across the tropical waters of the Indo-Pacific, from the Red Sea to the western Pacific Ocean.