I have my first quarantine tank and have a Royal gramma in it. It's now been 2 weeks and he's doing fine. I started out with copper in the tank and with the water changes it has dwindled down to practically nothing. I was wondering what the going belief on medicating new arrivals is? It is a better idea to start out with copper in your tank and keep it at low levels (0.25) for 4 weeks - or is it better not to put any medication in unless the fish develops signs and symptoms? :?: Would appreciate opinions.