Common name: Knobbed Starfish
Protoreaster, commonly known as Knobbed Starfish, is a genus of sea stars found predominantly in the Indo-Pacific region. These starfish are easily recognizable by their unique appearance, characterized by conical protuberances resembling knobs on their dorsal surface. This distinctive feature not only gives them their common name but also serves as a form of camouflage against predators in their natural habitat.
Knobbed Starfish are popular among aquarium enthusiasts due to their striking appearance and relatively hardy nature. They are generally easy to care for, making them suitable for both beginners and experienced aquarists. However, it's important to provide them with a suitable environment that mimics their natural habitat. This includes a well-established marine aquarium with plenty of live rock and a sandy substrate.
These starfish are omnivorous scavengers, feeding on detritus and small organisms. In captivity, they can be fed a diet of chopped seafood, algae, and specially formulated starfish food. It's crucial to monitor their diet closely, as they can sometimes prey on sessile invertebrates, including corals and clams, which may not be ideal for reef aquariums.
While Knobbed Starfish are relatively robust, they are sensitive to changes in water quality. Maintaining stable parameters is essential for their health. They also require adequate space to move and explore, as they can grow up to 40 cm in diameter. Regular observation is necessary to ensure they are not exhibiting signs of stress or disease.
In summary, Protoreaster starfish are a fascinating addition to marine aquariums. Their unique appearance and interesting behavior can provide endless enjoyment to hobbyists who are prepared to meet their specific care requirements.
