Common name: Mottled Sea Star

General information

The Mottled Sea Star, scientifically known as Tosia australis, is a captivating echinoderm that adds both beauty and intrigue to a marine aquarium. This species is characterized by its distinctive mottled coloration, which can range from shades of brown to orange, and even purple, often with lighter spots or patterns. It is a relatively small sea star, making it suitable for a variety of tank sizes.

Care

Tosia australis requires a well-established aquarium with plenty of live rock and a sandy substrate to mimic its natural habitat. It is important to ensure that the tank is free of aggressive fish or invertebrates that may harm the sea star. They are generally considered safe with corals and sessile invertebrates, but caution is advised as they may occasionally disturb small polyped stony corals. A varied diet of meaty foods, such as chopped clams, shrimp, and squid, is essential for their health.

Reproduction

In the wild, Tosia australis reproduces by releasing gametes into the water column, a process known as broadcast spawning. In the aquarium, however, reproduction is rare. If conditions are optimal and a group of individuals is kept, there is a possibility of observing this fascinating natural event.

Habitat

The Mottled Sea Star is native to the shallow waters of the Indo-Pacific region, including the coasts of Australia. It is typically found in reef environments, where it can be seen traversing the rocky substrate in search of food.