My tank is kept in a relatively colder room during the winter, about 67 degrees. I have a 20 gallon with mollys, platys, and a few fry. The temp was at 76 degrees, and due to the room temp that I mentioned, as well as the pregnant mollys, I raised the temp to 77 degrees. I did a water change 3 hours ago, which is when I decided to higher the temp one degree, and now I notice the heater doesn't go off. It stays on most of the time. If it does go off, it remains off for a good 2 minutes or so, then goes back on and stays on for a good few minutes. At 76 degrees, it would not go back on that quickly.
Is there a chance of overheating the tank and killing the fish since it stays on that long? The heater is only a month old.
Is there a chance of overheating the tank and killing the fish since it stays on that long? The heater is only a month old.