Reviewed by Kai Hall, UK Reviewer (Updated: July 2022)

#1 Choice: Rating = 92%

The number one pick right now in July 2022 is…

Editor's Pick
hygger 800W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital...
hygger 800W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital...
    View on Amazon UK

    #2: Best Ranked Runner-Up

    SaleAlso Good
    Inkbird Aquarium Heater Submersible Titanium Fish Tank Heater 300W with Adjustable Heating...
    Inkbird Aquarium Heater Submersible Titanium Fish Tank Heater 300W with Adjustable Heating...
      View on Amazon UK

      #3: Best For Positive Review Scores

      Worth Considering
      J B A Submersible Aquarium Heater 25W/50W/100W/200W/300W Fish Tank Thermostat- UK PLUG (25W)
      J B A Submersible Aquarium Heater 25W/50W/100W/200W/300W Fish Tank Thermostat- UK PLUG (25W)
        View on Amazon UK

        Disclosure: As Amazon UK Associates, we earn a commission for any completed qualifying purchases.

        BEST AQUARIUM HEATER: COMPREHENSIVE 2022 BUYING GUIDE

        Full buying guide on how to buy the best aquarium heater is coming soon. Please stay tuned!

        Additional Roundups