Scientific name – Ophiarachna incrassata Common name – Green Star of Death, Green Brittle Starfish Max Size – 18 in (40 cm) Care Level – Moderate Temperament – Aggressive Foods and feeding – The snail will search the aquarium for detritus and small organisms. When it gets big, it will hunt and eat fish. The larger ones should also be feed meaty foods such as shrimp or scallops daily. Aquarium suitability – Reef compatibility – Yes Captive care – This starfish is extremely helpful in keeping the aquarium clean by eating the detritus. When they are large they should be feed a supplemental diet, this will lessen their tendency to hunt the fish in the aquarium. They are nocturnal and will hide in the rockwork during the day. Like all invertebrates it is extremely sensitive to nitrates and copper, and even tiny amounts are lethal to them. If you find your starfish “dissolving” check for stray voltage in the aquariums, they are extremely sensitive to stray voltage. Like all starfish, they should never be exposed to air.