Just a caveat about cleaner shrimp:
They do not eat ich nor do they cure it. They only eat the encysted skin that develops as a result of the parasites' burrowing. The parasites are far too small for the shrimp to catch.
As far as the "natural" approach goes, you almost never see fish in the wild with it to begin with. As far as tanks go, the "natural" approach to ich is borderline survival of the fittest. The fish either gets over it or it dies. I, personally, would not leave it to chance or nature. I do agree, however, that one should keep things natural and in line (which includes water parameters, diet, etc.) as a prophylaxis. Keep a close eye on your fish. What you are observing now could very well be just a cycle where the cysts have fallen off, only to return in full force and increased numbers later on.
They do not eat ich nor do they cure it. They only eat the encysted skin that develops as a result of the parasites' burrowing. The parasites are far too small for the shrimp to catch.
As far as the "natural" approach goes, you almost never see fish in the wild with it to begin with. As far as tanks go, the "natural" approach to ich is borderline survival of the fittest. The fish either gets over it or it dies. I, personally, would not leave it to chance or nature. I do agree, however, that one should keep things natural and in line (which includes water parameters, diet, etc.) as a prophylaxis. Keep a close eye on your fish. What you are observing now could very well be just a cycle where the cysts have fallen off, only to return in full force and increased numbers later on.