Photo by saltwaterfish.com member, Grennan: David Grennan.These stars are found on muddy or sandy bottoms.They are best kept in deep sand beds.Offer supplemental feedings of dried algae or small bits of chopped clams.Starfish are intolerant of sudden changes in oxygen levels, salinity and pH of the water, and cannot tolerate copper-based medications. The drip acclimation method is highly recommended for all Sea Stars due to their intolerability to changes in water chemistry. It should never be exposed to air while handling.