Common name – Fancy, Red, Banded etc Serpent Starfish Max Size – 12 in (30 cm) Care Level – Moderate Temperament – Peaceful Foods and feeding – The snail will search the aquarium for detritus and small organisms. Aquarium suitability – Reef compatibility – Yes Captive care – This starfish is extremely helpful in keeping the aquarium clean by eating the detritus. 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.