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NICREW Submersible Aquarium Mini Heater, Small Betta Fish Tank Heater with Electronic Thermostat, 35W : Amazon.ca: Pet Supplies
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SunGrow Betta Heater, 10 Watts, Fully Submersible Aquarium Heater, Automatically Reaches Preset Temperature, Ideal for Small Tanks, Suction Cups Included for Quick Installation : Amazon.ca: Pet Supplies
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Amazon.com: PGFUNNY 25W Aquarium Heater, Fish Tank Heater for Betta Smart Thermostat, Slim Design Fit 3 to 5 Gallon Tank, with Thermometer Strips : Pet Supplies
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DaToo 10 Watt Small Aquarium Heater Mini Betta Flat Fish Tank Heater for 1 Gallon 1.5 Gallon : Amazon.ca: Pet Supplies
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Amazon.com: PULACO 25W Small Aquarium Betta Heater with Free Thermometer Strip, Under 6 Gallon Fish Tanks (Preset Temperature 78℉) : Pet Supplies
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