PPM or mgs of Cupramine during HT?

[bb]

I've begun testing with Seachems measure of .3 mg's. What is the magic Number? The have been in QT for about 3 days. Lost the Powder Blue the ich came in on.. Tragic Can any one give me what the optimum #'s is and confirm I should them for a minimum of 5 weeks? Thanks

 

[Dr. Reef]

cupramine at 0.5 for 4-5 weeks.

 

[SDguy]

I've killed several fish with cupramine at 0.5. If you want to use that level, ramp it up very slowly... like 5-7 days, and then start your treatment timer at that point. I prefer 0.3 for 4 weeks, and then another 2-3 weeks with the cupramine removed to make sure it worked.