Malachite green

[Edmonton Eskimo]

Are you positive that it is ich? Velvet can look a lot like ich and is much more deadly. Are your fish gasping at all? If not then it is ich. Paraguard by seachem is a good choice for ich. You will need to use a qt tank however. I have made the giant mistake of not qting my fish and I will never introduce another fish into my tanks without qt. Anthony Calfo said it best "to not use a quarantine tank is like playing russian roulette, everyone loses in the end some just get to play longer than others." That is probably the truest statement I have ever heard in my experience as an aquarist.