So, I was planning on picking up a couple of rescue bettas, healing them up, and holding them until people would like to adopt them. I was wondering if anyone has had success with putting several kritter keepers in a tub, filling the tub with water around the kritter keepers, and then putting a heater in tub.
Does anyone have a better method for heating a lot of bettas? I have trouble keeping my room warm, so I don't think a space heater is a viable option, and we have to keep our house around 60°F for my mother's health. Also, it has to be a system that doesn't allow water to travel to different tanks, since each will be in quarantine and treated for their individual illnesses.