Brittle stars make great additions to just about any aquarium, provided the tank is of a suitable size of course. However, these Ophiuroid sea stars will occasionally get the craving for live food, usually in the form of your fish. To keep the star fish happy and your fish populations from dwindling, stay away from the green brittle stars for starters. They are notorious for chomping down on aquarium fish. Another approach you can take is one of constantly spot feeding the star. Krill and silversides are great food items for these starfish and the will keep the stars full enough so they don’t attempt to eat your other livestock.