I knowingly bought a percula clown fish with ich he had some of the best colors I've seen. The ich doesn't seem to be to advanced I only noticed 3 spots but his tank mates didn't look so good, it also didn't look like the store was doing anything about it as they had many other sick fish:thumbdown. I set up a hospital tank I'm using lunch pail it holds 2 gal, I dosed Mardel lab's Copper safe. I placed a large air stone in inside and I plan to do 1 gallon water change daily using treated water from my display tank. My question is. Will this be OK and how long does treatment normally take? I have used copper safe before long ago when I was doing fresh water I still had some left over in my pile of chemicals but the instruction brochure is gone.