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Amazon.com: BOEESPAT Small Aquarium Heater 50W Fish Tank Heater for 5/10 Gallon Betta Fish with LED Temperature Controller and Smart Thermostat : Pet Supplies
Fluval Betta Premium Aquarium Kit, 2.6 Gallon | Petco
Amazon.com: Betta Fish Tank Heater, 25W Mini Aquarium Heaters Free 2 Artificial Plants 1 Stick-on Thermometer Strip 2 Suction Cups, Water Warmer Temperature Controller Smart Thermostat for 3-5 Gallon Tank : Pet Supplies
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SunGrow Betta & Turtle Submersible Aquarium Heater with Thermostat, Electric Heat Controller for Tropical Fish Tank Water Temperature, 10-watt, up to 5-gal - Walmart.com
