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Home » Blog » Does a Betta Fish Need a Heater?

Does a Betta Fish Need a Heater?

January 12, 2019 Leave a Comment

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Does a Betta Fish Need a Heater?If you own a Betta fish, you might be wondering about one big question: Does a Betta fish need a heater?

What you might not realize is “yes”, you should keep your Betta fish in the perfect temperature.

Too many Betta fish owners put their pets in a stressful situation because the water is too cold. You definitely don’t want to do that.

Instead, you need to make sure that the water is at the most comfortable temperature.

Table of Contents

  • Water Temperature for Betta Fish Tank
  • What Happen if You Put a Betta Fish in Cold Water?
  • How to Keep a Betta’s Water Warm?
  • Conclusion

Water Temperature for Betta Fish Tank

The best temperature for a Betta fish tank is between 76- and 81-degrees F.

Though they can live in colder temperatures, it isn’t comfortable. Most experts say to not let the water temperature get below 72 degrees F.

What Happen if You Put a Betta Fish in Cold Water?

If the water gets below 69 degrees F, this is much too cold.

The cool temperature will stress out your fish, and it can cause their immune system to weaken. It can even be fatal to some fish.

When you put your Betta fish in cold water it can get very sick. For instance, it might get “fur coat syndrome”, which is a bacterial infection. It is often fatal to the fish.

Another issue is the development of ich, which appears as white spots on the fish. Ich is a very common disease. It is easy to treat, but it can definitely kill the fish. You also put your fish at risk of developing fin rot or mouth fungus if the water is too cold.

A Betta fish is a tropical fish. So, as you might imagine, they do not tolerate cool temperatures. Most Betta fish can survive a cold temperature for a short time, they cannot do this long term.

Since a Betta fish cannot regulate its body temperature, it has to rely on the temperature of the water in its tank. This is similar to a cold-blooded reptile.

There are signs that a Betta fish is too cold. First, it might swim slower than normal. It also might swim nearby a heater or warm area of the tank. Finally, it might lose its gorgeous color and look dull.

Keep in mind that you want to make sure the water isn’t too hot, too. Though a Betta fish can live in water that is as high as 80 to 82 degrees F, this is not recommended for a long period of time.

How to Keep a Betta’s Water Warm?

The very best way to keep your Betta habitat warm is a good quality heater.

Heater for Betta Fish

What is the most important feature of a heater?

The thermostat! If you don’t know how warm the water is, it is very easy to overheat it.

With a thermostat, the heater will turn off when it is set to the right temperature. This ensures that the water will not get too hot, which could certainly kill your fish.

When choosing your heater, there are some things you should consider.

First, the wattage. You should choose a heater that is three to five watts per gallon of water. Also, make sure that it is secure. A Betta fish can dislodge them.

Safe Heater Operation

You certainly want to make sure that you are using your heater safely. Even if the heater has a thermostat, you want to install other thermometers in the water. This way, you always know what the temperature is.

You should also monitor the temperature of the tank throughout the day. This way, if the heater stops working, you can catch it as soon as possible.

It is also important that you know how your chosen heater works. There are some heaters that allow you to choose a certain temperature. Others, however, have “more or less”.

If you have one that has a “more” or “less” option, it is important to turn it slowly, and then check the temperature of the water after adjusting. Remember, the water will take time to adjust, and you don’t want to harm your fish.

Emergency Situations for Power Outages or Heater Failure

Now you know the importance of keeping a constant temperature in your tank. But what happens in the case of an emergency?

The power could go out or the heater might fail. At this point, the water in the tank could start to cool.

Fortunately, there are some emergency tips that you can use. These will temporarily keep your Betta fish tank at a good temperature. Though it might not be 100%, it can help to keep your fish alive.

One method is to use hot water in bottles and then float the bottles in the water. To do this, you can fill plastic bottles with hot water, and then float them on top. Make sure that the bottles are clean and sealed.

Make sure you do not use boiling water. You should make sure that you track the temperature after you put the hot bottles into the tank. Your goal is to keep your tank’s water temperature as close to optimal as possible.

Another method you can use is the heat of a candle. Placing a candle near the glass tank releases heat, which is absorbed into the tank’s water. Tapers and votives are great for this.

When using a candle, make sure it does not release a lot of scent or soot. You don’t want this getting into the tank. You can also consider using candle heaters or clay pots with tea lights. These give out a lot of heat, which helps tank temperature stability.

Conclusion

By creating the optimal temperature for your Betta fish, you can ensure that he lives a good, long life. Too many Betta fish have had their lives cut short because the temperature in its enclosure is not right.

Though you probably want to keep your Betta fish’s tank well-maintained and tidy, it is very important to keep the temperature at a good, safe temperature. Remember, this is between 76 and 81 degrees F.

Use a heater with a thermostat to ensure the optimal environment for your fish, and give it the perfect home.

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