randall's goby

So, I’ve had my Randall’s Goby for over a year, and he’s been perfectly fine. In the past six months or so, he developed a serious bloat, as shown in the pictures attached. What should I do? It’s been the same size for quite some time, and doesn’t appear to affect the fish in the slightest...

Switched over tanks and unfortunately don't have room for my Randall's Goby and Tiger Pistol Shrimp. Perfectly healthy, haven't had any issue with these guys other than covering corals in my sandbed occasionally. :p They're both full grown, the pistol shrimp is a pretty good size, 2.5-3" I'd...