In your quarantine tank, what precautionary medicine do you use? I've heard some use Paraguard or PraziPro for all new fish in their quarantine tank, as a precaution. I've also heard using nothing, because if your new fish have a disease, you want it to come out before the fish get added to your main tank. I was contemplating on using aquarium salt on a permanent basis as a precautionary measure.
What do you use?
What do you use?