I'm new the the saltwater hobby. I lost 2 clowns to what everyone said was Brooke. I only had the clown and a yellow tang. I was advised to quarantine my tang and treat with copper. I has taken me 2 weeks to get the copper to treat with. In the mean time the tang has been doing great. Eats great acts normal. My question is should quarantine and treat or not. And if so how long . I attached a b pic of one of the clowns before it died.