my yellow watchman goby has a bristle worm in his mouth. he has his mouth open and I can see it moving around. I am afraid for two reasons. one is the bristles the other is it acts as its intentional. By this when ever the worm crawls to his lips and appears to be coming out the goby "hiccups" and sucks him back it. Could he be ussing the worm to treat an internal ailment or parasite? This is just strange to me.

