Sand Sifting StarfishHow to Care for Sand Sifting Starfish written by Dave Burr An important team member of any "Clean Up Crew" the Sand Sifting Starfish will sift through the sand bed eating detritus and leftover scraps of food. Chances are you will not see this starfish often, as it will burrow into the sand to hide or search for food. Nevertheless it is a good choice for any reef aquarium, and will help create a balanced ecosystem and keep your sand looking good.