Hmm, is the fish like "drunk swimming"? There must be a better term, but I had a guppy doing that. Although I didn't see anything wrong externally, the next morning it was face down in the gravel. The others were fine, though.
It's hard to know what it is, but I would treat the tank with the Jungle Lifeguard you have. I picked up some myself, since it says "you don't have to be a fish expert, there's no need to even diagnose the disease." At this point, I'm not sure it could hurt. Edit: it does say not for scaleless fish though. How's the Ram doing?