The Conical Spined Starfish (Echinaster sentus) are common among the shores of the Atlantic Ocean, most notably the south-eastern United States and Caribbean. They have a dark brown body with lighter spots, typically yellow or beige; though colors may vary. They should be kept in an established peaceful aquarium, where they can scavenge for detritus, algae and small invertebrates. Supplemental feeding may be necessary in newer aquariums. They reach a maximum size of 5 inches and should be kept in an aquarium of at least 30 gallons.