Aquarium Heaters

Our collection of Aquarium Heaters and Fish Tank Heaters is sure to have just the right aquatic heating qualities you’re looking for. Whether you’re looking for a small 25w fish tank heater, or a large 500w aquarium heater – we have them in all shapes and sizes. You can enjoy free UK shipping with no minimum order quantity, as well as same-day despatch on orders placed before 4pm. Browse our range of aquarium heaters below.

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  1. Hepo Aquarium Fish Tank Heater Double Tube 25w to 600w

    The Hepo Q6 range of aquarium heaters are developed with a double heating tube for optimum reliability and performance. These heaters are available in a range of sizes from 25w to 600w. Please select the size required from the drop-down menu when ordering.

    These quality heaters are easy to adjust and will regulate the temperature in your aquarium. It is recommended to use your heater alongside a stick-on thermometer to ensure the tank temperature is correct.

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    As low as £18.99
  2. Ista External Aquarium Heaters

    The Ista External Heaters are the ideal solution to heat your tropical aquarium without having to have an unsightly heater in on display in the aquarium.

    The External Heater fit’s inline with your return pipe from an external filter and heats the water as it passes through the thermal spraying glass structure of the unit. The thermal spraying Glass also speed up the heating process making the heaters extremely efficient at heating your aquarium.

    Two temperature sensors continuously monitor and display the temperature on the 2-line digital display and adjust the heat produced accordingly. The 2-line display shows both the set temperature and the real-time water temperature.

    Available in: 150w, 300w and 500w models.

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    As low as £45.99
  3. Hepo M7 Infrared Aquarium Heater Range (25w - 600w)

    The Hepo M7 range of infrared aquarium heaters are suitable for aquariums from 25 to 600 litres in size. Infrared style heaters are typically more energy efficient and reliable than standard glass or metal heaters, and heat aquariums quicker and maintain a more stable temperature.

    The M7 series heaters are available in a choice of 10 sizes to suit a range of aquariums (25w, 50w, 75w, 100w, 150w, 200w, 250w, 300w, 500w and 600w)

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    As low as £29.99
  4. Hepo HP-605 Submersible Aquarium Heaters

    The Hepo HP-605 series heaters are easy to set and highly accurate. Made from strong glass to ensure optimum power output while also being secure.

    Available in 25w, 50w, 75w, 100w, 150w, 200w and 300w sizes.

    These heaters are easy to adjust, and will regulate the temperature in your aquarium. It is recommended to use your heater alongside a stick on thermometer to ensure the tank temperature is correct.

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    As low as £9.99
  5. Hepo HP-608 Submersible Quartz Aquarium Heaters

    Ideal for aquariums up to 25 - 300 litres, these high-quality quartz glass heaters can be used in both freshwater and marine aquariums alike. The temperature can easily be regulated on the top of the heater, and the desired temperature is shown on the front of the heater.

    The Hepo heater range comes supplied with a 3 Pin Standard UK plug, and a 1.5 metre cable.

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    As low as £10.99
  6. Hidom 25w Aquarium Heater (HT-2025)

    You are purchasing a high quality 25W Aquarium heater suitable for aquariums up to 25 litres in size (HT-2025)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 16 and 32 degrees centigrade.

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  7. Hidom 25w ProHeat Quartz Aquarium Heater (HT-8025)

    You are purchasing a high quality quartz 25W Aquarium heater suitable for aquariums up to 25 litres in size (HT-8025)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 20 and 32 degrees centigrade.

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  8. Hidom 50w Aquarium Heater (HT-2050)
    Rating:
    100 % of 100

    You are purchasing a high quality 50W Aquarium heater suitable for aquariums up to 50 litres in size (HT-2050)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 16 and 32 degrees centigrade.

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  9. Hidom 50w ProHeat Quartz Aquarium Heater (HT-8050)

    You are purchasing a high quality quartz 25W Aquarium heater suitable for aquariums up to 50 litres in size (HT-8050)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 20 and 32 degrees centigrade.

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  10. Hidom 75w Aquarium Heater (HT-2075)

    You are purchasing a high quality 75W Aquarium heater suitable for aquariums up to 75 litres in size (HT-2075)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 16 and 32 degrees centigrade.

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  11. Hidom 75w ProHeat Quartz Aquarium Heater (HT-8075)

    You are purchasing a high quality quartz 75W Aquarium heater suitable for aquariums up to 75 litres in size (HT-8075)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 20 and 32 degrees centigrade.

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  12. Hidom 100w Aquarium Heater (HT-2100)
    Rating:
    99 % of 100

    You are purchasing a high quality 100W Aquarium heater suitable for aquariums up to 100 litres in size (HT-2100)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 16 and 32 degrees centigrade.

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  13. Hidom 100w ProHeat Quartz Aquarium Heater (HT-8100)

    You are purchasing a high quality quartz 100W Aquarium heater suitable for aquariums up to 100 litres in size (HT-8100)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 20 and 32 degrees centigrade.

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  14. Hidom 150w Aquarium Heater (HT-2150)

    You are purchasing a high quality 150W Aquarium heater suitable for aquariums up to 150 litres in size (HT-2150)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 16 and 32 degrees centigrade.

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  15. Hidom 150w ProHeat Quartz Aquarium Heater (HT-8150)

    You are purchasing a high quality quartz 150W Aquarium heater suitable for aquariums up to 150 litres in size (HT-8150)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 20 and 32 degrees centigrade.

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  16. Hidom 200w Aquarium Heater (HT-2200)

    You are purchasing a high quality 200W Aquarium heater suitable for aquariums up to 200 litres in size (HT-2200)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 16 and 32 degrees centigrade.

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  17. Hidom 200w ProHeat Quartz Aquarium Heater (HT-8200)

    You are purchasing a high quality quartz 200W Aquarium heater suitable for aquariums up to 200 litres in size (HT-8200)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 20 and 32 degrees centigrade.

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  18. Hidom 250w ProHeat Quartz Aquarium Heater (HT-8250)

    You are purchasing a high quality quartz 250W Aquarium heater suitable for aquariums up to 250 litres in size (HT-8250)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 20 and 32 degrees centigrade.

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  19. Hidom 300w Aquarium Heater (HT-2300)

    You are purchasing a high quality 300W Aquarium heater suitable for aquariums up to 300 litres in size (HT-2300)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 16 and 32 degrees centigrade.

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  20. Hidom 300w ProHeat Quartz Aquarium Heater (HT-8300)

    You are purchasing a high quality quartz 300W Aquarium heater suitable for aquariums up to 300 litres in size (HT-8300)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 20 and 32 degrees centigrade.

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  21. Hidom 500w ProHeat Quartz Aquarium Heater (HT-8500)

    You are purchasing a high quality quartz 500W Aquarium heater suitable for aquariums up to 500 litres in size (HT-8500)

    Our easy adjustable heaters are completely submersible, and are suitable for both freshwater and marine aquariums. The temperature can easily be regulated between 20 and 32 degrees centigrade.

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  22. Aquarium Fish Tank Heater Guard with Suction Cups Fits 25w to 300w

    Universal aquarium heater guard for use with heaters from 25w to 300w. Size is easily adjusted to accommodate most heaters.

    Using a heater guard protects sensitive fish from injury when the aquarium heater is operating. The heater guard also helps to prevent accidental damage the heater itself.

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  23. 2 Pack Replacement Aquarium Heater Suckers Suction Cups With Bracket

    Pack of 2 x replacement suction cups and clips suitable for aquarium heaters.

    High quality suction cups - larger than most replacements, so they will stick for longer. Suitable for use with most brands of aquarium heater.

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  24. 15w Micro Plastic Aquarium Fish Tank Heater Preset to 25 Degrees

    Our high quality pre-set submersible heater are completely submersible and suitable for use with small aquariums. These heaters are suitable for use with both tropical and marine aquariums alike.

    This 15w model is suitable for use in aquariums up to 15 litres in size.

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  25. 25w Micro Plastic Aquarium Fish Tank Heater Preset to 25 Degrees

    Our high quality pre-set submersible heater are completely submersible and suitable for use with small aquariums. These heaters are suitable for use with both tropical and marine aquariums alike.

    This 25w model is suitable for use in aquariums up to 25 litres in size.

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  26. 300w External Aquarium Fish Tank Heater for Canister Filter

    The Finest Filters new and improved EH-300 external heater is ideal for aquariums up to 300 litres in size. This heater can be set very easily by simply pressing the set button on the front of the heater until the desired temperature is displayed on the LCD screen. The heaters have an LED indicator which lights up when the heater is operating. These heaters display the temperature in degrees celcius.

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  27. 500w External Aquarium Fish Tank Heater for Canister Filter

    The Finest Filters new and improved EH-500 external heater is ideal for aquariums up to 500 litres in size. This heater can be set very easily by simply pressing the set button on the front of the heater until the desired temperature is displayed on the LCD screen. The heaters have an LED indicator which lights up when the heater is operating. These heaters display the temperature in degrees celcius.

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