And probably still infected. Ich has a cycle and I suspect that when ever the snake oil remedies work is probably because the ich cycle come and go, or it was not ich to begin with.

You may see ich again eventually if you create a stress to your fish.

Yah I do agree it that. Stress does play a very important role for ich.

What "snake oil remedies" are you referring to?

I guess herbals.

I read something very interesting over at RC about Ich. Apparently Ich dies out in a tank if no new Ich infested water/fish is introduced into a system for 9 - 11 months. Something about after the 35th generation the population isn't genetically viable anymore.

I don't really understand exactly why that is, becuase Ich is a single cell organisum, it doesn't reproduce sexually. I am still skeptical, but the source seemed to be legit, and referenced some actual research.

I guess ich is one of the MOST debatable topic in this hobby :P

anything that is labeled "reef safe" and that you can add to a tank with corals.

I read that as well that ich will exhaust itself after many generations but I know quite a few people who had ich come and go for 2 years and more without introducing any new fish so that theory might take a little bit more than 9 months.

Its not just about adding fish, just infected water, so corals too.

Totally agree anything reefsafe doesnt seem to be effective.

Herbal medications are always like that :P Even for humans :P Like I tried herbal medication for my cough and didn't work while the med had a very good rep.