I'm quarantining 2 blood orange clownfish in a 10g QT. They've made it through 14 days of cupramine, and my LFS told me to use a cuprisorb packet that treats 60g instead of doing water changes. I read that it takes 2 weeks for the cuprisorb to remove undetectable substrate leaching levels, but how long will it take to reach a level that would not affect fish or parasites? I was planning on having them sit in QT for a week without copper before transferring to my display tank. Thanks!