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Penn-Plax Aquarium Heater Fully Submersible Within 1 Degree of Accuracy 75 Watt Heats Up to 15 Gallon Tank 5 Gallon 7"- 25 Watt
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hygger Small Submersible Aquarium Heater 25W Mini Betta Fish Tank Heater with Thermostat for 2-5 Gallon Saltwater Freshwater : Pet Supplies - Amazon.com
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Fluval 25-Watt Aquarium Heater for Nano Fish Tanks | Mini 25W Heater – Aquarium Co-Op
Aqueon Submersible Aquatic Flat Heater Mini Up to 2.5 Gallons, Black, 5 Watts - Walmart.com
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Cascade® Heat® 7" Aquarium Heater 25 Watt for 5 Gallon Tanks at FreshMarine.com
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Best Heaters for a 5-Gallon Freshwater Aquarium Fish Tank: Reviews - PetHelpful
Best Heaters For 5 Gallon Betta Tanks - Betta Care Fish Guide
Amazon.com : Fluval P25 Submersible Aquarium Heater for Up to 6 Gallons, 25 Watts : Pet Supplies
Neo-Therm Pro Heater
