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Amazon.com: HITOP Mini Submersible Aquarium Heater - 50W Digital Heater for Fish Tank Turtle Tank 5-15 Gallon, Saltwater and Fresh Water with Temperature Controller (50W) : Pet Supplies
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Amazon.com: ZHGSERVU 100W/300W/500W Aquarium Heater 500 Watt Fish Tank Heater Submersible Auto Thermostat Turtle Tank Heater 40-90 Gallon with Protective Sleeve and 3 Suckers : Pet Supplies
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Amazon.com: SZELAM Aquarium Heaters 300W Submersible Fish Tank Heater 55 Gallon, Anti-Dry Burning and Anti-Overheating, Explosion-Proof Fast Heating Fish Heater for Freshwater and Saltwater Aquarium Tank Heater : Pet Supplies
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