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Adjustable Mini Aquarium Heater 0.5-40 Gallon Submersible Small Fish Tank Heater Digital Display Thermostat External Temperature Controller 10W/20W/30W/25W/50W/100W/200W : Amazon.ca: Pet Supplies
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YukiHalu Small Submersible Aquarium Heater, Adjustable Mini Fish Tank Heater 25W 50W 100W 200W 300W with External Temperature Controller, LED Display, Used for 5/10/20/40/60 Gallons (25 Watts) : Amazon.ca: Pet Supplies
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hygger Newly Quartz Submersible Aquarium Heater, 300 W Fish Tank Heater with LED Temperature Controller, Run-Dry and Overheat Protection for 40-71 Gallon Marine and Freshwater : Amazon.ca: Pet Supplies
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