This tropical starfish archasteridae family, is known as star or star white sand substrate. It has the typical morphology of starfish, with flattened body and usually have five arms that protrusions that serve to dig between the substrate, sometimes and only in exceptional cases, we see members with 3 or 6 arms. His body is hard and the color varies from white to gray, beige or brown stripes usually much more intense, reaching from end to end of arm 15 cm in length. Despite being a nocturnal species, and burial practices, it is easy to enjoy watching the scenery or climbing over the glass. It is up to 90 m depth, although it is common to see up to 60m.

Their habitat is distributed throughout the Indo Pacific from Hawaii to the Maldives and from China to Australia. Usually inhabit rocky areas and seagrass beds where they can be confused with half the seabed.

In nature it feeds on detritus, plant debris and small invertebrates. Use the typical procedure of the starfish, exposing his stomach around the dam and engulléndola. The water quality parameters are typical of the reef aquarium .. It is a copy that helps us both to remove the background as to minimize waste. The male is smaller than the female. In nature, the male above the female puts her arms alternating with it, but their genitalia fail to touch, the gametes are expelled to the outside (external fertilization), why the male does not need a larger size . This process can hardly be reached in a home aquarium. Is believed to induce each other to reproduce and therefore the process is more numerous with increasing density.