The other Anthias is fine. I have copper on hand and a QT tank (10 gallon) I’m warming up now. Also metro and prazi. Anything I should do to lessen the impact on him when I put him in it?
Make sure the tank temperature and salinity are the same. Do you have a way to provide bio filtration in the QT?
Then, you need to decide if you will run copper first, prazi first or both at the same time. I'd skip the metro, it overlaps a lot with the copper. What copper product do you have?
Jay