Aquarium Heaters

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1 - 36 of 52 Results

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Marina Floating Thermometer with Suction Cup for Aquariums
Rated 3.8156 out of 5 stars
141
$2.99Chewy Price

FREE 1-3 day shipping over $49

SunGrow Betta Fish & Turtle Aquarium Tank Water Heater, 10-watt
Rated 4.4286 out of 5 stars
14
$12.45Chewy Price
$25.99List Price

FREE 1-3 day shipping over $49

HDE LCD Digital Aquarium Thermometer
Rated 3.6733 out of 5 stars
101
$8.17Chewy Price
$9.99List Price

FREE 1-3 day shipping over $49

Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt
deal
Rated 3.3469 out of 5 stars
49
$11.99Chewy Price
$19.99List Price

Buy 2+ Save 30%

FREE 1-3 day shipping over $49

Aqueon Mini Aquarium Heater, 2-gal, 5 watt
Rated 3.5306 out of 5 stars
49
$8.90Chewy Price
$15.99List Price

FREE 1-3 day shipping over $49

SunGrow Betta Fish Thermometer Sticker, Temperature Strip for Aquarium & Reptiles Tank
Rated 4.5 out of 5 stars
2
$4.85Chewy Price
$4.99List Price
$4.61Autoship Price

FREE 1-3 day shipping over $49

Eheim Jager Thermostat Aquarium Heater, 300-watt

More Choices Available

Rated 4 out of 5 stars
57
$32.06Chewy Price
$34.99List Price

FREE 1-3 day shipping over $49

Aqueon Preset Aquarium Heater, 100-watt

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Rated 3.372 out of 5 stars
207
$14.99Chewy Price
$24.99List Price

FREE 1-3 day shipping over $49

Fluval Submersible Glass Aquarium Heater, 50-watt
Rated 3.7143 out of 5 stars
28
$19.48Chewy Price
$33.99List Price

FREE 1-3 day shipping over $49

SunGrow Betta Fish & Reptiles Aquarium Tank Water Temperature Digital Thermometer Gauge
Rated 3 out of 5 stars
2
$5.80Chewy Price
$6.99List Price
$5.51Autoship Price

FREE 1-3 day shipping over $49

Penn-Plax AquaLIFE Therma-Temp Digital Aquarium Thermometer, 2-in
Rated 2.9091 out of 5 stars
22
$3.51Chewy Price

FREE 1-3 day shipping over $49

Penn-Plax Cascade Heat 300W Preset Submersible Aquarium Heater, 12-in
Rated 5 out of 5 stars
1
$17.99Chewy Price
$35.99List Price

FREE 1-3 day shipping over $49

Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt

More Choices Available

Rated 5 out of 5 stars
4
$19.99Chewy Price
$33.99List Price

FREE 1-3 day shipping over $49

Eheim Jager Aquarium Thermostat Heater, 150- watt
Rated 3.8889 out of 5 stars
27
$27.12Chewy Price

FREE 1-3 day shipping over $49

Aqueon Pro Aquarium Heater, 300 watt

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Rated 3.72 out of 5 stars
75
$52.97Chewy Price
$66.99List Price

FREE 1-3 day shipping on this item

Aqueon Aquatic Flat Heater, 15-watt

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Rated 3.1667 out of 5 stars
18
$9.56Chewy Price
$19.99List Price

FREE 1-3 day shipping over $49

Aquatop Submersible Glass Aquarium Heater, 250-watt

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Rated 3.6829 out of 5 stars
82
$23.99Chewy Price
$27.99List Price

FREE 1-3 day shipping over $49

Tetra Pond De-Icer, 300-watt
Rated 4.1786 out of 5 stars
28
$35.17Chewy Price
$64.59List Price

FREE 1-3 day shipping over $49

Tetra HT40 Submersible Aquarium Heater & Electronic Thermostat, 150-watt
deal
Rated 2.5 out of 5 stars
8
$16.99Chewy Price
$27.99List Price

Buy 2+ Save 30%

FREE 1-3 day shipping over $49

Marina Betta Submersible Aquarium Heater
Rated 4.0893 out of 5 stars
56
$11.26Chewy Price
$17.99List Price

FREE 1-3 day shipping over $49

Cobalt Aquatics Electronic Neo-Therm Pro Submersible Aquarium Heater, 75-Watt

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Rated 4 out of 5 stars
8
$66.79Chewy Price
$92.18List Price

FREE 1-3 day shipping on this item

Tetra HT55 Submersible Aquarium Heater & Electronic Thermostat, 200-watt
deal
Rated 2.3846 out of 5 stars
13
$24.35Chewy Price
$28.99List Price

Buy 2+ Save 30%

FREE 1-3 day shipping over $49

Zoo Med BettaTherm Mini Size Betta Bowl Heater
Rated 1 out of 5 stars
6
$7.99Chewy Price
$19.99List Price

FREE 1-3 day shipping over $49

Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 7-in, 25-watt

More Choices Available

Rated 5 out of 5 stars
2
$16.19Chewy Price
$26.99List Price

FREE 1-3 day shipping over $49

Eheim Thermocontrol Aquarium Water Temperature Controller, 50-watt

More Choices Available

Rated 5 out of 5 stars
1
$30.37Chewy Price
$38.99List Price

FREE 1-3 day shipping over $49

Marineland Precision Heater, 300 Watt

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Rated 2.0476 out of 5 stars
42
$28.00Chewy Price
$45.69List Price

FREE 1-3 day shipping over $49

K&H Pet Products Thermo-Pond
Rated 3.2727 out of 5 stars
11
$42.99Chewy Price
$89.99List Price

FREE 1-3 day shipping over $49

GloFish Submersible Fish Heater, 50-watts
$12.92Chewy Price
$20.59List Price

FREE 1-3 day shipping over $49

K&H Pet Products Thermo-Pond Perfect Climate Deluxe Pond Deicer, 1500 Watt

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Rated 3.04 out of 5 stars
25
$47.84Chewy Price
$91.99List Price

FREE 1-3 day shipping over $49

Lifegard Aquatics Pond Tube Thermometer
Rated 5 out of 5 stars
1
$13.53Chewy Price

FREE shipping over $49

Aquascape Submersible Fish Pond Thermometer
new
$13.98Chewy Price

FREE 1-3 day shipping over $49

Lifegard Pre-Set Quartz Glass Heater Electronic Control, 200 watt

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Rated 5 out of 5 stars
2
$24.00Chewy Price

FREE shipping over $49

Penn-Plax 10W Plastic Safe Aqiuarium Heater, 4-in
Rated 4.5 out of 5 stars
2
$16.02Chewy Price
$16.99List Price

FREE 1-3 day shipping over $49

H2Pro Titanium Aquarium Heater, 500-watt

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Rated 2.5 out of 5 stars
2
$79.27Chewy Price
$89.99List Price

FREE 1-3 day shipping on this item

Aquatop Nano Aquarium Thermostat Heater, 15-watt
Rated 3.1538 out of 5 stars
13
$25.99Chewy Price

FREE 1-3 day shipping over $49

Lifegard Led Digital Thermometer, Blue
Rated 2 out of 5 stars
1
$28.07Chewy Price

FREE shipping over $49

Aquarium Heaters

Taking care of your aquarium can be much easier with the right tools and basic knowledge. It’s important to know what makes a tank suitable for fish and plants to remain happy and healthy. The water may look and feel pristine, but that doesn’t mean your temperature is where it should be for healthy aquarium inhabitants. To maintain the best conditions for fish and plant life, check out our selection of quality aquarium heaters and aquarium thermometers. Aquarium thermometers are the perfect asset for monitoring the exact temperature of your tank. This will help you take proper action to set your temperature exactly where your aquarium needs to be. A fish tank thermometer usually reads in both Celsius and Fahrenheit. The ideal water temperature may vary depending on the particular fish, but the average range is between 74 to 82 degrees Fahrenheit (23 to 28 degrees Celsius). If you’re looking for a simple aquarium thermometer, try the Marina Floating Thermometer. This product is great for both freshwater and saltwater tanks, and it has a marker to show the safety zone for most tropical fish. It’s designed to easily float in the water, or it can be suctioned to the aquarium wall if preferred. It’s also imperative to look into aquarium heaters, especially for when it’s colder out. The EHEIM Jager Aquarium Thermostat Heater is ideal for marine and freshwater fish. What makes this fish tank heater extremely versatile is the fact you can use it for starting tanks all the way up to 16 gallon aquariums. If you’re looking for something that you don’t need to make any manual adjustments for, the Marina Submersible Aquarium Heater is programmed to reach a set temperature of 78 degrees. This heater is great for all fish and you can choose either a 10-watt heater that is ideal for tanks up to 2.65 gallons, or the 25-watt heater that will maintain tanks up to 6.6 gallons. When it comes to temperature, it is essential to adjust as needed to ensure your fish and plants stay in tip-top shape. Chewy carries all different types depending on your fish tank needs.

Related Categories: Aquarium Light Fixtures, Aquarium Replacement Bulbs, Aquarium Accessories, Fish Heating and Lighting