Malachite green

[monza]

I think you should do a lot more reading/reasearch on Ich. There is lots of info and be prepared to read lots. IMO do not use mactchlite green.
Sorry I can not just give you a simple answer, they are many opinions on how to treat it and prevent it.

My advive now would be make sure your water parameters are as pristine as possible and add some sort of garlic or garlic extract to the food you are feeding the fish.

Good luck, Ich sucks but is rather common and a frustrating part of the hobby.

Dave