Natural History Tube blennies seek permanent shelter in the unoccupied shells of barnacles and mollusks. They frequently retreat to their burrows in the hollow barnacles, poking their heads out of the cavities and showing the long cirri. Because of this behavior they are a favorite subject of underwater photographers. Male tube blennies display a spectacular behavior to attract females, with dramatic moves in erecting the dorsal fin forward and changes in body coloration. The male guards the eggs until they hatch.
Tube blennies feed mainly on zooplankton and also on the cirri of barnacles.
Photo to be added.