Best answer
Yes, Betta fish need an aquarium heater to keep the water warm and temperature maintained. Many novice aquarists believe the apparatus like an aquarium heater has advanced features, and so they are reluctant to invest in heaters. However, that not the case. Think of a heater as an oven.
People also ask
Do betta fish need a filter and heater?
Betta fish are often housed in bowls. That means no filter and no heater. Even people who keep betta fish in small tanks rarely provide filtration or heated water, and they survive for the most part. Really, this is what makes the betta so popular.
Can I keep a betta fish in a 5-gallon tank?
A 5-gallon tank with a filter and nano heater is the perfect home for a betta fish. Although I’d really like to see you choose a larger tank with filtration and a heater for your betta, you can keep him in a bowl if you stay on top of weekly water changes and make sure the water temperature is appropriate for his needs.
What happens if you buy a cheap Betta heater?
First, cheap betta heaters are prone to failure. This may result in the heater dying or getting stuck on when you least expect it. This can result in the death of your little fish! Secondly, many cheap betta heaters come preset to 78 F and no adjustment is possible.
Do Siamese fighting fish need a heater?
Although many tanks designed for betta fish, also known as Siamese fighting fish, do not come with heaters, they thrive in warmer temperatures. This raises the question: Do betta fish need a heater? The short answer is yes. In order for betta fish to live longer, they need a heater.