Betta Fish Tank Heaters & Thermometers

Sort
Filter
Rated 4.2 out of 5 stars
175
$8.60 Chewy Price
$13.99 List Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Rated 4.4 out of 5 stars
246
$1.75 Chewy Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Rated 3.6 out of 5 stars
325
$20.82 Chewy Price
$32.99 List Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Rated 4 out of 5 stars
57
$30.99 Chewy Price
$34.99 List Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Rated 4 out of 5 stars
86
$2.99 Chewy Price
$4.99 List Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Rated 3.9 out of 5 stars
70
$12.98 Chewy Price
$17.99 List Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Rated 3.9 out of 5 stars
63
$3.74 Chewy Price
$3.99 List Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Rated 3.9 out of 5 stars
35
$27.97 Chewy Price
$34.99 List Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Rated 4.2 out of 5 stars
19
$17.47 Chewy Price
$22.49 List Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Rated 3.9 out of 5 stars
39
$17.06 Chewy Price

Free delivery on first-time orders over $35
Free 365-day returns

Rated 4.2 out of 5 stars
5
$4.99 Chewy Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Rated 2.3 out of 5 stars
11
$21.43 Chewy Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Out of Stock
Rated 3.5 out of 5 stars
11

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Betta Fish Tank Heaters & Thermometers

Betta fish tank heater and thermometers are imperative for a thriving and healthy betta. A heater ensures that the water in the tank remains in the temperature range that bettas need, and thermometers help you monitor the temperature in the tank. Water that is either too hot or too cold makes the environment hostile for bettas, which could lead to disease, or worse. Quality betta fish tank heater and thermometers offer many health advantages, including:

  • Fish health: A heater and thermometers assist in keeping the tank interior at 76–81 degrees Fahrenheit, which is the ideal temperature range to support good health
  • Stress-reducer: Betta fish feel less stress when their surrounding water is the right temperature
  • Disease prevention: By keeping your tank at the correct temperature, you're ensuring strong immune systems for your betta fish and a reduction of risk for disease

You won't have trouble finding the right betta fish tank heater and thermometers at Chewy.com. With so many selections to choose from, you're bound to make the right pick to make both you and your betta fish very happy.

Frequently Asked Questions about Betta Fish Tank Heaters & Thermometers

Do betta fish need a heater in their tank?

Yes, betta fish need a heater in their tank if you want to provide an environment that supports good health. Betta fish thrive in a water temperature between 76–81 degrees Fahrenheit, and a heater is needed to ensure that temperature range is maintained and constant. The temperature shouldn't change by more than 1 or 2 degrees.

Do betta fish need a thermometer?

Yes, betta fish do need a thermometer. Thermometers in the tank help you know at a glance what the water temperature is inside. Water temperature must be kept between 76–81 degrees Fahrenheit.

What temperature should my betta fish tank be?

Your betta fish tank should have a temperature range of 76–81 degrees Fahrenheit. This temperature range provides the best environment for betta fish to maintain a strong immune system. Use a betta fish tank heater and thermometers to help you maintain the desired temperature.

How do I keep my betta fish tank warm?

Betta fish tank heater and thermometers help you to keep your fish tank warm. A heater keeps the temperature at a stable temperature of your choosing, and thermometers help you to monitor and ensure that the temperature is where you want it to be.

What size heater do I need for my betta fish tank?

The heater size depends on the amount of water you're heating and how much it needs to be heated (temperature of the room vs. the temperature you want in the tank). A general rule is 5 watts per gallon. This means a 5-gallon tank needs a heater with 25 watts; a 10-gallon tank needs a heater with 50 watts; etc. You may need to adjust this for your aquarium, so consider getting a heater with higher wattage that can be adjusted lower, if needed. Ambient room temperature, especially in different seasons, and location of the tank near heating or cooling sources can affect how much heating is needed.