Yeah, scales grow back.
So here are a couple of videos I took. I normally begin the heat treatment while new fish are in quarantine the next day, so I don't even actually see infestations anymore. But, I started waiting because I wanted to get it on film. In the first video you can see the fish is infested - spots covering it's entire body. Had I not begun treatment when I did, my guess is that the fish would have been dead in 2-3 days. Like with every other fish, all I do is raise the temp to 88 degrees for 2 weeks. Thats the extent of my involvement curing the fish. The first video is of the next day, once the tank was up to temp. The second video was 2-3 days later. 2 days after that the fish was spot free, and the fish is currently in the 125.
[ame=http://www.youtube.com/watch?v=DQm5wit0e1A]Ich - YouTube[/ame]
[ame=http://www.youtube.com/watch?v=Qzhea5CKZ0o]Ich 2 - YouTube[/ame]