I have a powder blue which was developing ich. It got worse and worse everyday but he always stayed energetic and ate a lot. None of my other fish showed symptoms and my water tested fine. I was going to do a water change which is what I normally do when something seems off (I dont like medicating) but noticed I didn't have enough salt. Ordered more salt and as the days passed, noticed the spots were disappearing and now he has none. I think this is the first fish I had which fought off ich without any intervention whatsoever. Have you guys experienced something like this maybe with other diseases? Heres the lil trooper.