From display to qt I got 71 gal qt tank I did look at the 2.5ppm I am using copper power when I test with Hanna checker it showed 1.75 was I supposed to make it 2.0 and hold it 3 weeks???
Therapeutic level with chelated copper like Copper Power is 1.5 - 2.0
I usually keep it at 1.75
Once at therapeutic, you maintain for 14 days and then transfer to clean sterile QT to observe for 14 more days. This is a good move for copper sensitive fish.
Or maintain therapeutic level for 30 days in the same QT as long as the fish are doing well.
Therapeutic level with chelated copper like Copper Power is 1.5 - 2.0
I usually keep it at 1.75
Once at therapeutic, you maintain for 14 days and then transfer to clean sterile QT to observe for 14 more days. This is a good move for copper sensitive fish.
Or maintain therapeutic level for 30 days in the same QT as long as the fish are doing well.