The Blood Red Sea Lilly, Heterometra sp, also known as the Red Feather Star is a rarely seen starfish in the aquarium hobby due to their difficulty to keep. As its name describes the Red Feather Star has a stunning deep dark red on body and arms  Unlike many stars the Feather Star has an upward facing mouth that allows it to move its food. With its numerous feathered arms it swims in open water filtering plankton and small food items out of the water. This species of star is recommended for experienced aquarists only due to the demanding needs of this star. Plenty of free floating food in a well circulated system are necessary as well as near perfect water parameters.