Tiger watchman goby paired up with fire shrimp?

[clownfishmama]

He stays in the same cave as the shrimp and doesn't mind his long whiskers, he also bites other gobies that get too close in the cave besides the shrimp. And he opened his mouth once so the shrimp could clean him so I wonder if they're paired.

 

[shakacuz]

not a paring, per se. but maybe the goby feels entitled and does not want to share the fire shrimp, haha.