The Red-knobbed Starfish, also known as the Red Spine Star, African Sea Star, and African Red Knob Sea Star, has a thick, gray body with multiple bright red tubercles extending upward along each of its five arms. Red stripes connect these protrusions, giving its back the appearance of wires interconnecting in a grid-like fashion. It is found in shallow tidal pools and up to 100' deep reefs in the Indian Ocean.
The Red-knobbed Starfish requires a large aquarium with ample supplies of live rock. A small specimen will eat algae. As it grows older, however, it is not reef compatible, as it will eat soft corals, sponges, tubeworms, clams, starfish, and other invertebrates. It should not be housed with Puffers. It is very sensitive to high levels of copper-based medications and will not tolerate high levels of nitrates.
Breeding in an aquarium is extremely difficult with no distinguishing characteristics to help differentiate males from females.
In the aquarium, the diet can consist of chopped clams, shrimp, fish, and squid fed once a week.