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Aquarium Heaters & Thermometers For New Fish

Underwater Treasures Floating Glass Fish Thermometer

Rated 4.4 out of 5 stars
312
$1.75 Chewy Price
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Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 1 of 9
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Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 1 of 9
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Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt slide 1 of 9
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Penn-Plax Cascade Heat Preset Submersible Aquarium Heater, 10-in, 150-watt

Rated 4.3 out of 5 stars
109
$13.90 Chewy Price
$45.99 List Price
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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
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Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 4 of 9
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Pawshelf Titanium Thermostat with Intelligent LED Display Submersible Aquarium Heater, 12.8-in, 300-watt slide 1 of 9
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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,...

Rated 4.4 out of 5 stars
134
$23.99 Chewy Price
$35.99 List Price
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HelloReef Stick on Aquarium Thermometer slide 1 of 4
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HelloReef Stick on Aquarium Thermometer slide 1 of 4
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HelloReef Stick on Aquarium Thermometer

Rated 4.5 out of 5 stars
8
$4.99 Chewy Price
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Fluval M 100Watt Submersible Fish Heater

Rated 4.5 out of 5 stars
35
$35.99 Chewy Price
$39.24 List Price
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Free 1-3 day delivery on first-time orders
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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
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Free 1-3 day delivery on first-time orders over $35
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Zoo Med Paludarium Heater, 100W

Rated 4.2 out of 5 stars
30
$28.26 Chewy Price
$43.99 List 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
194
$11.67 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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Eheim Thermocontrol E Fish Aquarium Heater, 300 W

Rated 4.4 out of 5 stars
45
$59.99 Chewy Price
$82.28 List Price
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Marina Floating Thermometer with Suction Cup for Aquariums

Rated 4.1 out of 5 stars
272
$3.99 Chewy Price
$5.30 List Price
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Free 1-3 day delivery on first-time orders over $35
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Fluval Electronic Aquarium Heater, 300-watt

Rated 4.1 out of 5 stars
108
$72.99 Chewy Price
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Underwater Treasures Digital Fish Thermometer

Rated 4 out of 5 stars
40
$2.55 Chewy Price
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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
117
$17.99 Chewy Price
$22.59 List Price
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Lifegard Adjustable Quartz Glass Heater Electronic Control, 25 watt

Rated 5 out of 5 stars
5
$31.40 Chewy Price
$32.27 List Price
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Free delivery on first-time orders over $35
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Arrives between Jul 22 and Jul 27

Fluval Wireless 2-in-1 Digital Fish Thermometer

Rated 4.2 out of 5 stars
29
$21.99 Chewy Price
$30.08 List Price
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Free 1-3 day delivery on first-time orders over $35
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Fluval Submersible Glass Aquarium Heater, 50-watt

Rated 4 out of 5 stars
63
$32.99 Chewy Price
$37.22 List Price
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Aqueon Glass Adjustable Aquarium Heater, 50-watt

Rated 3.9 out of 5 stars
95
$37.95 Chewy Price
$46.99 List Price
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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
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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
39
$42.99 Chewy Price
$44.08 List Price
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Free 1-3 day delivery on first-time orders
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Seapora Digital Thermometer with Probe

Rated 4 out of 5 stars
15
$14.28 Chewy Price
$16.99 List Price
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Free 1-3 day delivery on first-time orders over $35
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OASE Indoor Aquatics Filtosmart Thermo 200 External Fish Heater

Rated 4 out of 5 stars
4
$163.89 Chewy Price
$219.99 List Price
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SunGrow Betta Fish Thermometer Sticker, Temperature Strip for Small Aquarium & Reptiles Tank

Rated 4 out of 5 stars
94
$3.99 Chewy Price
$4.99 List 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 P10 Pre-Set Aquarium Fish Heater

Rated 4.2 out of 5 stars
22
$22.80 Chewy Price
$33.72 List Price
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Lifegard Pre-Set Quartz Glass Heater Electronic Control, 25 watt

Rated 4.3 out of 5 stars
12
$13.59 Chewy Price
$20.51 List Price
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Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Jul 22 and Jul 27

H2Pro Titanium Aquarium Heater, 300-watt

Rated 4.3 out of 5 stars
12
$79.99 Chewy Price
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Free 1-3 day delivery on first-time orders
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Aqueon Fish Tank Mini Heater, 10-watt

Rated 5 out of 5 stars
1
$17.95 Chewy Price
$20.99 List Price
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Free 1-3 day delivery on first-time orders over $35
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Fluval P25 Pre-Set Aquarium Fish Heater

Rated 4.3 out of 5 stars
12
$25.99 Chewy Price
$32.47 List Price
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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
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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
$36.99 Chewy Price
$38.03 List Price
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Aquael Platinium Temperature Control Aquarium Heater with Electronic Thermostat, 300W

Rated 4.6 out of 5 stars
23
$37.05 Chewy Price
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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 E200 Electronic Fish Aquarium Heater, 200-watt

Rated 4 out of 5 stars
4
$69.99 Chewy Price
$71.07 List Price
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Free 1-3 day delivery on first-time orders
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Seapora SmartTemp Dual Digital Aquarium Heater, 100-watt

Rated 5 out of 5 stars
3
$56.26 Chewy Price
$71.99 List Price
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Free 1-3 day delivery on first-time orders
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Tetra HT55 Submersible Aquarium Heater & Electronic Thermostat, 200-watt

Rated 4 out of 5 stars
42
$27.97 Chewy Price
$34.99 List Price
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Lifegard Led Digital Thermometer, Blue

Rated 4.4 out of 5 stars
5
$34.49 Chewy Price
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Free delivery on first-time orders over $35
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Arrives between Jul 22 and Jul 27

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