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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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Amazon.com : Orlushy 50W Small Submersible Aquarium Heater, Constant Temperature Betta Fish Tank Heater of 78℉for 5-10 Gallons Freshwater & Saltwater Tanks : Pet Supplies
6 Popular Heaters for Small Tanks. Pros and Cons - Shrimp and Snail Breeder
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Amazon.com: Hygger Mini Glass Aquarium Heater Adjustable LED Digital Temperature Display Small Tank Heater for Turtle Betta Fish Bowl with Protective Guard 50W : Pet Supplies
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Fluval 25-Watt Aquarium Heater for Nano Fish Tanks | Mini 25W Heater – Aquarium Co-Op
Fish Tank Heater Small Aquarium Heaters With LED Temperature Display 10W Submersible Fish Tank Heater Suitable
Amazon.com: DaToo 10 Watt Small Aquarium Heater Mini Betta Flat Fish Tank Heater for 1 Gallon 1.5 Gallon : Pet Supplies
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