Tank is a month and a half old Ita fully cycled I have corals and 2 fish last week I did a full water change because I had a disease kill 1 damsel and 1 clown fish now I only have 1 damsel and 1 clown
If that is considered an outbreak this is going to be an interesting hobby for you.
If you have fish dying I would worrying more about why that is happening. Disease usually affects all fish so something else may be going on. Tank is very young so it could be many things.