Sick fish in QT. What do I do to the tank?
I have a 5g planted, heated and filtered tank for a single betta. He got sick and I pulled him and put him in my hospital tank. He didnt make it so I am now wanting to get my tank going again to grow out/QT a couple dime size angles before adding them to my 50g tall tank.
My question is - do I need to bleach my tank before starting up a new cycle and adding angles or can I just keep it running safely?