Could a CBS eat a Firefish??

[barkingmad]

Hi everyone...I am new on here but joined to see if you can help me. I have a blue-leg coral banded shrimp in my tank, he is a pretty big guy about 1-1.5 inch body. We don't see him much during the day as he hides in his cave. Anyways what I am wondering is could he eat a firefish? I had the firefish in there for only a few days, and he seems to have just gone missing, but was doing fine otherwise. This is a pretty big fish, much bigger than the shrimp, but he did lie to hang out in the same spot as the CBS.

The firefish didn't jump out and we can't find any evidence of a body. Any guesses? I also had two peppermint shrimp that I haven't seen at all for a while, but I never saw them often so they could just be doing there thing.

I really want to get some clown gobies but I am seriously worried if the CBS ate the big firefish. If he is a fish eater I would like to bring him back to the store that sold him to me.