The African Red Knob Sea Star, also known as the Red Spine Star, African Sea Star, and Red-knobbed Starfish, 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.
Breeding in an aquarium is extremely difficult with no distinguishing characteristics to help differentiate males from females.
The African Red Knob Sea Star is very intolerant of sudden changes in oxygen levels, salinity and pH of the water, and cannot tolerate copper-based medications. The drip acclimation method is highly recommended for all Sea Stars due to their intolerability to changes in water chemistry. It should never be exposed to air while handling.
In the aquarium, the diet can consist of chopped clams, shrimp, fish, and squid fed once a week.
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