Aquarium Heaters & Thermometers For New Fish

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Underwater Treasures Floating Glass Fish Thermometer

Rated 4.4 out of 5 stars
294
$1.75 Chewy Price
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Zoo Med Paludarium Heater, 100W slide 1 of 2
Zoo Med Paludarium Heater, 100W slide 2 of 2
Zoo Med Paludarium Heater, 100W slide 1 of 2
Zoo Med Paludarium Heater, 100W slide 2 of 2
Zoo Med Paludarium Heater, 100W slide 1 of 2
Zoo Med Paludarium Heater, 100W slide 2 of 2

Zoo Med Paludarium Heater, 100W

Rated 4.3 out of 5 stars
28
$35.99 Chewy Price
$43.99 List Price
18% Off
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Free 1-3 day delivery on first-time orders
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Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 1 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 2 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 3 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 4 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 5 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 6 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 7 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 8 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 9 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 1 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 2 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 3 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 4 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 5 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 6 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 7 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 8 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 9 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 1 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 2 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 3 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 4 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 5 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 6 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 7 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 8 of 9
Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 9 of 9

Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in,...

Rated 4.4 out of 5 stars
130
$23.99 Chewy Price
$35.99 List Price
33% Off
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Free 1-3 day delivery on first-time orders over $35
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Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 1 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 2 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 3 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 4 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 5 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 6 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 7 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 8 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 9 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 1 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 2 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 3 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 4 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 5 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 6 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 7 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 8 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 9 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 1 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 2 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 3 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 4 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 5 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 6 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 7 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 8 of 9
Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 9 of 9

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

Rated 4.3 out of 5 stars
106
$41.99 Chewy Price
$45.99 List Price
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Free 1-3 day delivery on first-time orders
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Fluval Wireless 2-in-1 Digital Fish Thermometer

Rated 4.1 out of 5 stars
28
$21.99 Chewy Price
$25.99 List Price
15% Off
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Free 1-3 day delivery on first-time orders over $35
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Eheim Thermocontrol E Fish Aquarium Heater, 300 W

Rated 4.4 out of 5 stars
45
$74.80 Chewy Price
$82.28 List Price
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Free 1-3 day delivery on first-time orders
Free 365-day returns

HelloReef Stick on Aquarium Thermometer

Rated 4.4 out of 5 stars
7
$4.99 Chewy Price
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SunGrow Submersible Aquarium Heater with Thermostat for Betta & Turtle Tanks, 10-watt, up to 2-...

Rated 4.2 out of 5 stars
190
$13.09 Chewy Price
$13.99 List Price
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Free 1-3 day delivery on first-time orders over $35
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Tetra HT10 Submersible Aquarium Heater & Electronic Thermostat, 50-watt

Rated 4.1 out of 5 stars
140
$15.27 Chewy Price
$18.89 List Price
19% Off
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Free 1-3 day delivery on first-time orders over $35
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Marina Floating Thermometer with Suction Cup for Aquariums

Rated 4.1 out of 5 stars
269
$3.99 Chewy Price
$4.48 List Price
11% Off
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Free 1-3 day delivery on first-time orders over $35
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H2Pro Titanium Aquarium Heater, 200-watt

Rated 4.3 out of 5 stars
11
$64.99 Chewy Price
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Underwater Treasures Seapora Volt-Control Titanium Grounding Probe

Rated 5 out of 5 stars
1
$12.99 Chewy Price
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Fluval Submersible Glass Aquarium Heater, 50-watt

Rated 4 out of 5 stars
62
$30.99 Chewy Price
$34.99 List Price
11% Off
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Free 1-3 day delivery on first-time orders over $35
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Instant Ocean Testing Hydrometer for Aquariums, 1 count

Rated 4 out of 5 stars
38
$11.99 Chewy Price
$13.69 List Price
12% Off
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Free 1-3 day delivery on first-time orders over $35
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Underwater Treasures Digital Fish Thermometer

Rated 4 out of 5 stars
38
$2.14 Chewy Price
Autoship Price

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

Fluval M 100Watt Submersible Fish Heater

Rated 4.5 out of 5 stars
33
$32.99 Chewy Price
$35.99 List Price
Autoship Price

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

Hydor Micro & Mini Aquarium Slim Fish Heater, Black, 15-watt

Rated 4.4 out of 5 stars
11
$15.29 Chewy Price
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between May 31 and Jun 4

Seapora SmartTemp Dual Digital Aquarium Heater, 100-watt

Rated 5 out of 5 stars
3
$55.78 Chewy Price
$71.99 List Price
23% Off
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Free 1-3 day delivery on first-time orders
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SunGrow Betta Fish Thermometer Sticker, Temperature Strip for Small Aquarium & Reptiles Tank

Rated 4 out of 5 stars
91
$3.99 Chewy Price
$4.99 List Price
20% Off
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Free 1-3 day delivery on first-time orders over $35
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Tetra HT30 Submersible Aquarium Heater & Electronic Thermosat, 100-watt

Rated 4 out of 5 stars
115
$17.99 Chewy Price
$22.59 List Price
20% Off
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Free 1-3 day delivery on first-time orders over $35
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Aqueon Glass Adjustable Aquarium Heater, 50-watt

Rated 3.8 out of 5 stars
94
$37.95 Chewy Price
$46.99 List Price
19% Off
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Aquael Platinium 300W Glass Heater

Rated 4.6 out of 5 stars
23
$37.05 Chewy Price
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Free 1-3 day delivery on first-time orders
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OASE Indoor Aquatics HeatUp 400 Adjustable Fish Heater

Rated 4.7 out of 5 stars
3
$57.99 Chewy Price
$62.99 List Price
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Free 1-3 day delivery on first-time orders
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Fluval Electronic Aquarium Heater, 300-watt

Rated 4.1 out of 5 stars
106
$52.92 Chewy Price
$54.99 List Price
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Free 1-3 day delivery on first-time orders
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Fluval P25 Pre-Set Aquarium Fish Heater

Rated 4.3 out of 5 stars
12
$22.99 Chewy Price
$29.99 List Price
23% Off
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Free 1-3 day delivery on first-time orders over $35
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GloFish Submersible Fish Heater, 50-watts

Rated 4.1 out of 5 stars
23
$17.47 Chewy Price
$22.49 List Price
22% Off
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Free 1-3 day delivery on first-time orders over $35
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Fluval M 300Watt Submersible Fish Heater

Rated 4.2 out of 5 stars
38
$38.99 Chewy Price
$39.99 List Price
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Free 1-3 day delivery on first-time orders
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Hydor Theo Aquarium Fish Heater, Black, 400-watt

Rated 4.5 out of 5 stars
11
$34.99 Chewy Price
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Free delivery on first-time orders over $35
Free 365-day returns
Arrives between May 31 and Jun 4

Farm Innovators Convertable Stock Tank De-Icer

Rated 4.6 out of 5 stars
27
$33.74 Chewy Price
$52.99 List Price
36% Off
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Lifegard Led Digital Thermometer, Blue

Rated 4.4 out of 5 stars
5
$34.49 Chewy Price
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jun 3 and Jun 7

Tetra HT55 Submersible Aquarium Heater & Electronic Thermostat, 200-watt

Rated 4 out of 5 stars
42
$27.97 Chewy Price
$34.99 List Price
20% Off
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Free 1-3 day delivery on first-time orders over $35
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Fluval M 150Watt Submersible Fish Heater

Rated 4.3 out of 5 stars
10
$36.35 Chewy Price
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JBJ Aquarium Arctica Titanium Auqarium Chiller, 1/4-hp

Rated 5 out of 5 stars
3
$965.22 Chewy Price
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Free delivery on first-time orders
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Arrives between Jun 2 and Jun 6

OASE Indoor Aquatics HeatUp 50 Adjustable Fish Heater

Rated 4.2 out of 5 stars
5
$34.82 Chewy Price
$37.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
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Lifegard Adjustable Quartz Glass Heater Electronic Control, 25 watt

Rated 5 out of 5 stars
5
$29.07 Chewy Price
$32.27 List Price
10% Off
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Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jun 3 and Jun 7

Fluval M 200Watt Submersible Fish Heater

Rated 4.3 out of 5 stars
26
$36.99 Chewy Price
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Free 1-3 day delivery on first-time orders
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Save 5% on repeat deliveries

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