Question

the fish octopus starfish live in water is called​

Answer 1

Answer:

saltwater

Sea stars, commonly called, "starfish," are not fish.

Sea stars live underwater, but that is where their resemblance to fish ends. They do not have gills, scales, or fins. Sea stars live only in saltwater. Sea water, instead of blood, is actually used to pump nutrients through their bodies via a 'water vascular system.