My brother had a 3 gallon Betta tank. He was cleaning the tank and I was in another room. I heard a loud noise and I ran into his room. I'm not sure what happened but the tank is cracked in half. I got the betta into a little cup for now. He is doing really well. We don't have a tank for him now though. We are going to get a 3.5 to 5 gallon tank for him tomorrow. For tonight I set up a 2 liter bucket for the Betta. It has an air stone but I don't know if that is needed for a Betta. I know they don't like fast moving water and I'm afraid the current may stress him. Do I need an air stone for the Betta overnight? I will be cleaning his tank from now on when he gets a new one tommorow. I have the gravel, decor, and filter media in a seperate bin of tank water right now to save beneficial bacteria. Thanks for reading.