Brine Shrimp Day

I love adding the Frozen brine shrimp. This is really the only time that Dunkin' (my yellow watchman goby) actually comes out and eats. This worries me a little bit. I hope that in between the feedings of the frozen shrimp, that he gets enough food. I don't want him starving to death. I do have pods that I see crawling around on my live rock, but I never actually see him hunting them or picking them off the rocks. When I feed the sinking pellets (dainichi), he doesn't come out and eat them. Does anyone have any opinions on the feedings of yellow watchman gobies??