 Both species of sea anemone, which host "A. polymnus", are known to bury themselves in the sand when they are under stress, leaving the fish vulnerable to predation.It has been suggested that the almost equal size of the male is an adaptation to allow it to elude predators by erratic swimming in the water column or covering the relatively long distance to shelter in coral rubble.Anemonefish and their host anemones are found on coral reefs and face similar environmental issues.