1, depending on the situation. Live flower armor generally have open state also have closed state, generally in the lack of water or stimulation of the state will be tightly closed shell, and when it is in the environment of sufficient water, in the relaxation and breathing will be the body of the tentacles out.

2, you can judge from the shell color of the flower armor, the flavor of the flower armor and the reaction of the flower armor, etc. to determine whether the flower armor is dead or alive. Generally speaking, the fresh flower armor color pattern is obvious, and the dead flower armor color whitish; live flower armor smell a faint watery smell, and the dead flower armor smell pungent taste, a rotten smell.

3, when the flower armor open when you can touch with your hand, if the flower armor timely retracted and closed shell is alive, if a motionless no reaction is dead.