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HiTauing 200W/300W/500W Submersible Aquarium Heater for 20-130 Gallon - Upgraded Double Quartz Tubes Fish Tank Heater with HD Temperature Digital Display - Suitable for Freshwater and Saltwater : Amazon.ca: Pet Supplies
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hygger 500W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital Temperature Controller, Fast Heating for 60~120 Gallon : Amazon.ca: Pet Supplies
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✓ Best Aquarium Heater For 20 Gallon Tank: Aquarium Heater For 20 Gallon Tank | [Tested & Reviewed] - YouTube
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