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Bronze Knobbly Starfish

Pentaceraster tuberculatus
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Bronze Knobbly Starfish also known as the Grey Horned Starfish
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The Bronze Knobbly Starfish, has a thick, grey body with multiple bronze tubercles extending upward along each of its five arms. Bronze patterning connect these protrusions, giving its back the appearance of wires interconnecting in a grid-like fashion.

They are found in shallow tidal pools and up to 100' deep reefs in the Indian Ocean. The Bronze Knobbly 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.The Bronze Knobbly Starfish 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.

In the aquarium a diet can consist of chopped clams, shrimp, fish, squid and other meaty foods.

Minimum Aquarium Size

400 L

Max Size

30 cm

Reef Safe









Indian Ocean



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