Thats what i would do if I were in this situation. I've never had to treat before so I don't know about the bacteria on the filter. But i do know if youre treating with copper you have to monitor the water very carefully for copper concentrations. It's vital. Not enough copper and its not effective too much and you can kill the fish. :-( I guess thats why more people go with the hypo treatment it seems.
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.