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Amazon.com: Kulife Fumak Super Mini Aquarium Heater 10W Betta Heater Small Aquarium Heater Adjustable Submersible Fish Tank Heater Turtle Heater with Digital Display Thermostat, for 1-2 Gallon Tanks : Pet Supplies
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Tetra 2-10 Heater for Aquariums – Petsense
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LED Heater 500W Watts Submersible Fish Tank Aquarium Fresh or Salt Water Marine | eBay
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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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Tetra Submersible Aquarium Tank Heater, 2-15 Gallon, 50-Watts - Walmart.com
Amazon.com: Fish Tank Aquarium Heater - Adjustable Temperature Submersible Thermostat Heater,25W/50W/100W/150W/200W/300W : Pet Supplies
