I’m setting up an emergency 10 Gallon QT for two clowns with ich. Just bought the tank and freshly mixed saltwater in it. It’s ready for the fish, however I’m concerned about ammonia. My LFS told me to just perform 25% water changes every 4 days. They also advised I take a sponge from my DT, and put it in the QT to help with the bacteria. I found it odd because my DT is where the fish currently are in. If I bring the sponge into my QT, wouldn’t that re-infect them? My LFS said no because im using cupramine, but want a second opinion. Thanks
