Best aquarium heaters of 2025
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NICREW Aquarium Heater 200W, Temperature Adjustable Fish Tank Heater with Controller for 30-50 Gallon, Overheat ProtectionFree ShippingNICREW-
HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off When Leaving Water for Saltwater and FreshwaterFree ShippingHiTauing
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HITOP 100W Adjustable Aquarium Heater with Protective Cover, Submersible Fish Tank Heater for 10-35 Gallon Fish Tank or Turtle TankFree ShippingHITOP
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Fish Tank Aquarium Heater - Adjustable Temperature Submersible Thermostat Heater,25W/50W/100W/150W/200W/300WBnzaq
Best Value
20% OffSainSmart XpertMatic Submersible Aquarium Heater, 100W Adjustable Fish Tank Heater Thermostat with Suction Cup, for Marine Saltwater and Freshwater, Up to 20 Gallon Fish TanksFree Shippingsainsmart-
Eheim Jager Aquarium Thermostat Heater 150WFree ShippingEheim
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Fluval T300 Fully Electronic Aquarium Heater, 300W, up to 80 US Gal / 300 LFree ShippingFluval
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10W Aquarium Heater,Fish Tank Heater,Mini Tank Heater Heating Rod Constant Temperature Heater,USB Interface Design Rechargeable Heating Accessory for Aquarium and Small Fish TanksFree ShippingLQKS
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11% OffFluval M200 Submersible Heater, 200-Watt Heater for Aquariums up to 65 Gal., A784Free ShippingFluval
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FEDOUR 10W Super Mini USB Aquarium Heater, Small Adjustable Heater with External Controller for up to 2.5Gallon Small Fish Tank, Nano Fish Tank Heater, Betta Heater for Fish BowlsFree ShippingFEDOUR
10 Aquarium Heaters deals are available from:
Amazon stores, starting from CA$13.99.
The biggest discount we found is 20% on SainSmart XpertMatic Submersible Aquarium Heater, 100W Adjustable Fish Tank Heater Thermostat with Suction Cup, for Marine Saltwater and Freshwater, Up to 20 Gallon Fish Tanks at Amazon.
The lowest price we found is CA$13.99 while the highest is CA$68.78.
Prices for the best Aquarium Heaters deals average at CA$33.55.
Last updated on November 3, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Aquarium Heaters.