I left my bettas for 2.5 days and thought all would be fine. NOT.
I came home to find the Aqueon 10W heater which is only one month old failed while I was gone. Water was 59 degrees and my fish were swimming very slowly.
I put a new heater in there and added some warmer water. We are up to 66 degrees so far after about 1.5 hours. I am fearful of shocking them with a quick increase but also afraid they are so cold.
I have not given them any food yet. They are becoming more active.
Any suggestions what I should do here????? Thanks for any help.