This peaceful omnivore will effectively clean even the largest home aquarium of detritus and left over food. Like other starfish, the Sand Sifting Sea Star will also consume small invertebrates, including shrimp, urchins, mollusks, bivalves, or other small sea stars. As such, the Sand Sifting Sea Star should be actively fed a varied diet consisting of natural food sources, especially in well-established marine aquariums. Otherwise, this voracious feeder will quickly clean your aquarium of detritus and then burrow into your substrate, starve, and eventually begin to decay.