Sick fish

I set up my brand new 29 gallon tank with a light hood. I moved all of the fish back into it, but they are still real sick. They are covered with ick. So far I have lost three fish, there is another one that looks like it is not doing so well. You can see the blue bottle of fish medicine in the back ground, I don't know if it is doing any good. I guess the best thing I can do at this point is nothing, but it doesn't feel good. The ick is kind of like thrush, white stuff growing on their bodies. I hope they are better tomorrow morning.