Betta fish are a gorgeous, tropical fish that are common in fishkeeping. When building a tank for a new betta fish, you may wonder what equipment you need to give your fish a good life. A
The answer is yes, betta fish need a
Betta Fish Water Parameters
Betta fish are tropical fish, originating from shallow bodies of water in Thailand and nearby countries of Asia. In their natural environment, the outside temperatures range from 86 – 104 degrees Fahrenheit, and the water temperature stays between 75 – 80 degrees Fahrenheit.
Can Betta Fish Live in Cold Water?
Betta fish can’t live in cold water because they are tropical fish. Their bodies aren’t built for cold temperatures and they can become sick in water that is kept too cold. Water temperatures below 74 degrees Fahrenheit are too cold and can impact your betta’s health.
What Happens if the Betta’s Water Is Too Cold?
If a betta’s water is too cold, the betta will become lethargic and risk death. In cold water, a betta fish’s metabolism will slow down and it’ll lose the ability to repair its fins and replace old cells.
Its immune system will also weaken, and the betta will no longer be able to fight illnesses. Cold temperatures are a danger to your betta fish’s health and should be avoided at all costs.
Temperature shock is a reaction in betta fish to drastic changes in temperature. Because fish are cold blooded animals, their body temperature is regulated only by their surrounding environment. When there’s a rapid change in water temperature, it causes confusion and stress.
Temperature shock is possible not only in cold water changes, but also in hot water changes.
When a betta fish experiences temperature shock, they begin to breathe rapidly because their body has difficulty moving oxygen. They may swim erratically, or stop swimming altogether.
To avoid this issue, it’s important that you never change the water temperature too drastically or too quickly. Gradual changes to water temperature is key.
Benefits of Betta
Fish Tank Heaters
The first, and most obvious benefit of an aquarium
Aquarium heaters monitor and control the water temperature in a betta tank so you don’t have to. They also stabilize the water temperature and eliminate drastic temperature fluctuations.
Do Betta Fish Need a
Yes, betta fish need a
What Type of
Heater Does a Betta Need?
Submersible heaters are the most common types of aquarium heaters (and for good reason). As the name suggests, these heaters are completely submerged into the water, efficiently distributing heat.
You can place the
Our favorite submersible
Immersible heaters are hung over the side or back of a
Immersible heaters don’t provide as effective heating as submersible heaters because they lose heat in the part of the
In-line heaters are installed on the outside of the tank and function alongside a water pump or
This ISTA in-line heater is our favorite in-line
Substrate heaters are cables or coils laid beneath the substrate in your aquarium. They’re designed to heat the
This type of
Some aquarium filters come with built-in heaters. Similar to the in-line
The Biostyle Thermo Aquarium Filter is the best power
How Can I Keep My Betta Fish Warm Without a
Though we don’t recommend taking care of a betta fish without using a
1. Use a Smaller Tank
Though small tanks are not ideal for betta fish (we recommend at least 5 gallons), in situations where you need to have more control over the water temperatures, a smaller tank size could be beneficial. Heat control is much easier with a small tank of water than a large tank.
2. Increase the Room Temperature
One way to keep your betta’s water warm without a
3. Insulate the Walls of the Betta
There are lots of DIY ways to insulate your betta tank. Start with putting a lid cover over the tank. You can use what you have in your house, but use tin foil and styrofoam if you have it and wrap it around the entire tank. The insulation should retain the warmth inside the tank for a longer period of time.
4. Direct Sunlight
As I’m sure we are all aware, the sun is a reliable source of heat. Putting the tank in direct sunlight is a good wait to add a little warmth to the aquarium water.
5. Strong Aquarium Lighting
Alongside sunlight, artificial light is a heat source as well. With some strong aquarium lighting, you should be able to add some heat into the
6. Hot Water Bottles
Another way to heat betta tanks without a
Important tip: increase the water temperature range slowly
When you’re finally able to introduce (or re-introduce)a
Heat Is the Key to Tropical Fishkeeping
Betta fish thrive in warm water, so as a betta owner, it’s important to keep your