I am afraid that the meds you are using right now have no effect on the possible cause of your fish's illness...When you are suck, do you just go to the pharmacy and buy meds randomly? The rapid cure will not treat internal parasites or worms which is what your fish currently has. The inappropriate meds will most likely kill your fish. If you care to save it, go back to my previous post. Do not buy meds if you have no idea what they are effective against. Poly guard, paraguard, etc will not help either in this situation.