Adding more fish to quarantine tank

[The Guy]

Originally Posted by clown lover

Hope the tang cops aren't around! but it's just not a good idea to put him in a 20 g long even on his own, I agree with Bill it will probably stress the tang out more. My 2 cents worth!!

Ok now we got the whole story, I probably would have done a rescue buy as well and try and help him get healthy. If a 20 long is what you have for him to get better in then do your best to keep your water quality up and I agree the garlic drops in the food is a great idea.
You may want to try some nori/seaweed on a clip, my tangs go crazy for it. But do not add any fish to the tank. Good luck hope the tang makes it.

[gregzz4]

Forgive me for not reading the whole thread, but from what I've read ...

You are running a QT without filtration - I'd change that pronto

I'd be using at least some kind of HOB Aqua filter

Do NOT add any new fish to your QT until you have your levels under control

And I suggest you learn about the Nitrogen Cycle before you add any more fish to your tank