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hygger 1~13 Gallon Mini Glass Aquarium Heater Adjustable LED Digital Temperature Display Small Tank Heater for Turtle Betta Fish Bowl with Protective Guard : Amazon.ca: Pet Supplies
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Submersible Aquarium Heater, 25W Mini Betta Fish Tank Heater External Intelligent LED Temperature Digital Display, Automatically Shut Off When Leaves Water, Suitable for 1-15 Gallon Small Fish Tanks : Amazon.ca: Pet Supplies
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AQQA Small Aquarium Heater 15W/25W/50W/75W/100W Submersible Fish Tank Heater with Intelligent LED Temperature Display and External Temperature Controller for Betta Fish Tank and Turtle Tank 15W (for 1-5 gallon)
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SUNGROW Betta & Turtle Submersible Aquarium Tank Water Heater with Thermostat, 10-watt, up to 5-gal - Chewy.com
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