Photo by Saltwaterfish.com member, limitedslipThese colorful tube dwelling anemones build their tube with specialized nematocysts (Nematocysts are individual cells usually on the outer surface of the organism which have a variety of functions, most usually in defence or capture of prey species. ) called ptychocysts layered with mucus secretions.They normally bury themselves in soft sand, mud or in coral rubble.Some of these anemones may have a powerful sting but most are safe to keep with fish and invertebrates.Feed daily and supplement the iodine levels as needed for best health. This species can live for years in optimal conditions.