I need to set up a tank for a clownfish by tomorrow. The company sent me the wrong fish and they are replacing it but I need to rehome the other clown. I have a small tank but what can I do to make sure it is safe right away? I was thinking fill it with water from my current tank. I also have some media rock in my current filter I could add to the filter in the new tank. Should I get a battle of bacteria tonight? Dr. Tim’s or something?