I had been in the freshwater hobby for a lot of years and swimbladder problems on a fish are detrimental and permanent unless it's caused by indigestion, then you can attend to it's "special needs". I have not experienced swim bladder disease with marine fish but would suspect the same thing. Could be bacterial, could be indigestion or could be water quality. Try feeding it boiled peas and see if he/she responds to it. What are you feeding it? He could be reacting to the type of foods being fed. If feeding zooplankton, make sure you squirt it half way in the tank to prevent them from settling on the top. If it does the fish could have swallowed a bubble while feeding.
Good luck Trancy!
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30g reef tank, CPR CY192 filter w/ DIY plumb running Rio 17HF return, Coralife 3x 9w UV Sterilizer, 3 24W T5-Helios 10K Daylights/3 24W T5-Helios Blue lights, 2 Logysis blue meteor light strobes (moonlights/24 Blue LEDs).
Tiger tail cuke, asst. snails/hermits, asst. feathers, rainbow acan,zoos,shrooms,bubble,galaxea, asst. shrimp, 2 ocellaris,mandarin,zebrasoma xanthurum,pink-spot watchman,red-striped pistol. | 
HELP:Swim Bladder????? 
