Help Blue stripe pipefish

[fishoholic]

I noticed what appears to be a small bubble under my pipefish's head. I'm thinking this is bad. I noticed a lot of bubbles in the frag tank (caused by a ciyano outbreak) so I moved the pipefish into our refugeium, hopefully he'll be better off in there. Is there anything else I should be doing for him, will I need to pop the bubble or would doing something like that make it worse? Any ideas would be appreciated.