Well, today has been day ten with some fluctuation in the fish's well being. Two days ago the spots were about 99% gone. I still did the treating becuase I knew I am supposed to about three days after all the spots are gone. Yesterday I come home from work and they have spots on them again. I have been doing the 20% water change and then adding the medicine to the amount of water in the tank (not the amount taken out) I know it can concentrate the amount of medicine in the tank, but if that was the case, you would think that there would be a high concentration and the ich would stop coming back. So today is day 10. I put in the dosage before I left for work, and will put in the dosage again when I get home after I do the water change. The carbon has been taken out from the start. The salt I used in the past was aquarium salt, not the marine salt. I feel like I am doing everything right and it's just not working. I think I will bump up the temps a little bit. Through all of this, my mystery snail bred. I'm not sure if Ich affects them, but if it does, it nor the medicine is affecting either one of them. It's just these barbs I can't seem to cure. Thanks all for the information again. I'm fighting the good fight here. It seems like it may have been stopped from spreading, but killing it off now is the issue. I will definitely keep you guys posted as it all goes down.