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Tetra HT Submersible Aquarium Heater With Electronic Thermostat, 50-Watt : Amazon.ca: Pet Supplies
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How To Tell if Aquarium Heater is Broken? These Things Can Help!
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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