Flukes and ich will spread. You can treat the DT for flukes. I never had issues with prazi in the DT. Ich needs a qt. Copper is not friendly.
Edit: Research FW dips. I don't want to be the one to tell you to do this. But look for information about it and see if its something you are willing to do. FW will dislodge the flukes from the fish. And you'll see them at the bottom of the container.
I lost a pink margin wrasse to flukes. Hard lesson learned. I will hate flukes forever. My fault, as I never had to deal with flukes until that purchase. Long story.
Edit: Research FW dips. I don't want to be the one to tell you to do this. But look for information about it and see if its something you are willing to do. FW will dislodge the flukes from the fish. And you'll see them at the bottom of the container.
I lost a pink margin wrasse to flukes. Hard lesson learned. I will hate flukes forever. My fault, as I never had to deal with flukes until that purchase. Long story.

