ick, black ick, mouth rot...help?

[shengster]

my yellow tang has black ick, my blue tang has ick, and mouth rot ( i can see the bone). its a fish only tank, at 1.016, with 0.2 copper. anythroughts? and do anyone know that that lil white flea looking thing running all over the glass?

[leebca]

The continuous running of copper in a home display tank is really not in your and your fish's best interest. As you have discovered, copper only really addresses two main diseases: Marine Ich and Marine Velvet and doesn't't prevent or deter dozens of other conditions, which putting fish through a quarantine process would address.

Having said this, let's just think of this as a tank with fish with multiple afflictions. Each affliction requires medication that is not appropriate for a display tank. This means each fish is removed to its hospital tank and teated for its particular condition.