I need some help with a quarantine tank. One of my fish I just bought I believe has an infection (will post about that later), and I do have a 15 gallon tank to set up. My questions are do I fill up that tank with some of dt water? Will the ammonia spike in that, or will I be fine because there is beneficial bacteria in dt? Do I only put visibly infected fish in qt, since I can’t treat dt from what I’ve read because of coral and inverts? Any help will be great, thank you.