Heaters

Fish Tank Heaters

Maintaining the right water temperature for your aquarium is very important, we stock a vast range of Aquarium Heaters & Thermometers. Free UK delivery on everything in store.

Unsure which is the correct size heater for your aquarium? Send us an email and we’ll be happy to help you find what you’re looking for using our Contact Page

Browse our fantastic range of aquarium heaters:

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  1. sale
    25w Aquarium Fish Tank Heater
    Special Price £9.00
    Save £1.00 Regular Price £10.00
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  2. sale
    100w Aquarium Fish Tank Heater
    Special Price £9.44
    Save £1.04 Regular Price £10.49
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  3. sale
    300w Fish Tank Aquarium Heater
    Special Price £9.00
    Save £1.00 Regular Price £10.00
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  4. sale
    50w Aquarium Fish Tank Heater
    Special Price £9.00
    Save £1.00 Regular Price £10.00
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  5. sale
    Aquarium Heater Guard Protector w. Suction Cups
    Special Price £4.49
    Save £0.50 Regular Price £4.99
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  6. sale
    300w Aquarium Fish Tank Heater
    Special Price £10.79
    Save £1.20 Regular Price £11.99
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  7. sale
    Digital Strip Aquarium Thermometer
    Special Price £2.69
    Save £0.30 Regular Price £2.99
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  8. sale
    25w Fish Tank Aquarium Heater
    Special Price £8.09
    Save £0.90 Regular Price £8.99
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  9. sale
    200w Digital Aquarium Fish Tank Heater
    Special Price £17.09
    Save £1.90 Regular Price £18.98
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  10. sale
    250w Aquarium Fish Tank Heater
    Special Price £9.00
    Save £1.00 Regular Price £10.00
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  11. sale
    Digital Display Thermometer
    Special Price £6.74
    Save £0.74 Regular Price £7.49
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  12. sale
    50w Fish Tank Aquarium Heater
    Special Price £8.09
    Save £0.90 Regular Price £8.99
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  13. sale
    200w Aquarium Fish Tank Heater
    Special Price £9.89
    Save £1.10 Regular Price £10.99
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  14. sale
    150w Aquarium Fish Tank Heater
    Special Price £9.00
    Save £1.00 Regular Price £10.00
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    Out of stock
  15. sale
    50w Digital Aquarium Fish Tank Heater
    Special Price £15.29
    Save £1.69 Regular Price £16.98
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  16. sale
    300w Digital Aquarium Fish Tank Heater
    Special Price £17.99
    Save £1.99 Regular Price £19.98
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How Do Heaters for Aquariums Work?

An aquarium tank needs a heater to be kept warm, particularly for exotic species of tropical and marine fish, which need warmer water to stay healthy.

Our best aquarium heater range yet features the most advanced products, with easy installation, thermostat automatic heating control, and energy-efficiency to make warming your fish tank economical and easy. The general rule is to apply 1w of heat to 1 litre of water in the aquarium.

Heaters for aquariums convert electricity into heat, and the water quickly absorbs this warmth. To ensure that all parts of your tank are equally comfortable, and to avoid dangerous hot or cold spots, it is essential to have good circulation or install an air pump or wavemaker.

Are Heaters for Aquarium Tanks Expensive?

Not at all; the AllPetSolutions range features the best aquarium heater brands, including our own market-leading range.

This includes every accessory you need for your heaters for aquarium tools, from digital thermometers to heater guard protectors and a range of high-performance heater options.

Our newest models include our 100W Aquarium Fish Tank Heater, which is entirely submersible and has a smart nickel helical heating coil for outstanding performance and durable design.

Available in a full choice of heat ranges from 300W, down to 25W versions, our bestselling heaters are cost-effective both to buy and to run and come complete with a one-year warranty for peace of mind.

Can I Keep Track of the Temperature in my Aquarium?

Many aquariums heaters come complete with thermostatic controls. However, it is always nice to have visibility of that temperature and make sure that the warmth is just right for your fishy pets.

AllPetSolutions offer a range of thermometers, from our simple Digital Strip through to Glass Floating Precise Aquarium Thermometers.

For guidance about the best aquarium heater products, visit our range online, or get in touch with the AllPetSolutions team for expert guidance.