Different cupramine (drops per gallon) directions?

[kesh]

Hi..im just had a velvet outbreak. i got cupramine and dosed the 1st dose. I followed the direction on bottle label. My label says 20 drops per gallon. My label corresponds to that on seachem website. But i see ppl commenting 16 drops per gallon, 10 drops per gallon. Did I overdose?
What is the right dose?

 

[Humblefish]

Hi..im just had a velvet outbreak. i got cupramine and dosed the 1st dose. I followed the direction on bottle label. My label says 20 drops per gallon. My label corresponds to that on seachem website. But i see ppl commenting 16 drops per gallon, 10 drops per gallon. Did I overdose?
What is the right dose?

You can't really rely on the dosing guidelines. You need either a Seachem or Salifert copper test kit to know for sure. 0.4 - 0.5 ppm is therapeutic range for Cupramine.