How to protect your heater and your fish
If you have ever touched an aquarium heater when it’s on, you’ll know not to do it again! Yet fish, especially sucker catfish and sucking barbs, have a habit of hanging on to heaters.
Winter: Temperature Issues in the Aquarium
Not every aquarium is situated in a heated living space like your cozy living room. The temperature can be as low as 12 - 14 °C at night in some rooms of the house or apartment.