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![Amazon.com: fishkeeper 800W Upgraded Submersible Aquarium Heater, [Ultra-Safe] [Intelligent Thermostat] [Frequency Fast Heating] [Run-Dry & Overheat Protection] Fish Tank Heater for 80~220 Gallon Large Aquariums : Pet Supplies](https://m.media-amazon.com/images/I/71cxO1FYjTL.jpg "Amazon.com: fishkeeper 800W Upgraded Submersible Aquarium Heater, [Ultra-Safe] [Intelligent Thermostat] [Frequency Fast Heating] [Run-Dry & Overheat Protection] Fish Tank Heater for 80~220 Gallon Large Aquariums : Pet Supplies")
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XFLO Inline Titanium Heaters Deliver Serious Temperature Control | Reef Builders | The Reef and Saltwater Aquarium Blog
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Corisrx Submersible Aquarium Heater Set - 55-100 Gallon Betta Fish Tank Temperature Controller, Turtle Tank Thermometer, Freshwater Saltwater Large Tank Thermostat (900W (for 132 to 160 Gallon)) - Walmart.com
3 Best small aquarium heaters for tiny tanks 1 - 10 gallons
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XpertMatic Submersible Aquarium Heater, 100W Adjustable – SainSmart.com
