Okay, I just got a new male. He was a spur of the moment buy. Anywho I am going to divide my females 2g temperarily. She is small so it should be okay. Anyway I don't want to put him in for at least a week just to make sure he isn't sick. He is currently upstairs but is without a heater. It gets around 71 in the day and 60 something at night warmer then room. Also I think he has fin rot. So I am going to get some salt today and the stuff to divide the tank. Now is there a heater I can buy that is $15 or less for a 1 gallon fish bowl? Or should I just put him in the divided tank right away? I am not sure he is sick, and so I don't hastily want to put him the tank, but I don't want him to freeze either. And if I do put him in right away will it hurt my female to put in salt for a couple days?