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hygger Aquarium Heater, Digital Display Mini Submersible Fish Tank Heater(100W),Fast Heating Thermostat with External Controller and Built-in Thermometer Heater for 25-50L Small Fish Tank

4.1 4.1 out of 5 stars 129 ratings

£23.99 £23.99 per count
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100W for 25-50 liter
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Purchase options and add-ons

  • 【Mini Design Aquarium Heater】220-240V/50HZ oval design aquarium heater small, fast heating small fish tank. aquarium heater 100W for 25-50L water fish tank, suitable for betta fish, turtles, etc. Heater size :16 x 13 x 5 cm. The power cord is 150cm long, enough for indoor use. In addition, the pond heater has two sturdy suction cups on the back to hold it in place.
  • 【External Controller】Easily set the temperature on the controller, high precision temperature control system, can set the temperature range of 17-34℃. Each time you set the temperature, simply press the button repeatedly until it reaches your desired temperature, then stop, wait for the number to blink 3 times, and then the setting is complete. Once the temperature is set, the aquarium heaters will heat the water to the set temperature, and then automatically stop heating, no need to operate.
  • 【Digital Temperature Display】There is an LED display in the middle of the front of the water fish tank heater, which can display the water temperature and set temperature in real time. When the adjustment button is pressed, the temperature flashes to display the set temperature. When the temperature setting is complete, the LED will always show the water temperature. Only when you press down on the controller will the LED display the set temperature number.
  • 【Double Safety Protection】This is an automatic heater for aquarium fish tank, with water level sensor device, automatically stop heating after water. After completing the temperature settings, you can rest assured that it will keep the tank water at the temperature you set. When the actual water temperature is higher than 35℃, the pond heater automatically starts overheating protection and stops heating.
  • 【Safety Control Protection】Please note: this aquarium heater 100w with thermometer is a fully submersible aquarium freshwater and saltwater heater. When the top of the water heater comes out of the water, it will turn off automatically, and the LED shows E1. When the water comes out of the water, it will automatically return to normal operation.(Keep the controller away from water, it's not waterproof)

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This item: hygger Aquarium Heater, Digital Display Mini Submersible Fish Tank Heater(100W),Fast Heating Thermostat with External Controller and Built-in Thermometer Heater for 25-50L Small Fish Tank
£23.99 (£23.99/count)
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Product Description

aquarium heater 50w aquarium heater 100w aquarium heater 500w aquarium heater 500w
Aquarium Heater 50W Aquarium Heater 100W Aquarium Heater 500W Aquarium Heater 800W
Customer Reviews
4.1 out of 5 stars
129
4.1 out of 5 stars
129
4.5 out of 5 stars
77
4.5 out of 5 stars
77
Price £21.99 £23.99 £48.99
Voltage 220-240 V / 50HZ 220-240 V / 50HZ 220-240 V / 50HZ 220-240 V / 50HZ
Material of heating tube explosion-proof quartz explosion-proof quartz explosion-proof quartz explosion-proof quartz
Adjustable temperature 17°C-34°C 17°C-34°C 21°C-34°C 21°C-34°C
Temperature accuracy 士l℃ 士l℃ ±0.1℃ ±0.1℃
Length of power cable 150cm 150cm 150cm 150cm
Heater size 16*13*5cm 16*13*5cm ‎29.8 x 19.8 x 8.4 cm ‎30.1 x 19.8 x 9 cm
Fit for aquarium 1-25L 25-50L 225-450L 450-680L
aquarium heater

hygger Fish Tank Heater

1)This aquarium heater diving heater has the memory function when power failure, and automatically closes when there is no water, so it is safe to use. Automatically stop heating when the water temperature is higher than 35℃.

2)The fish tank heater is designed with external temperature controller for convenient temperature setting. Built-in thermometer, sensitive in water. In addition, the small aquarium heater has an Led digital display on the outside showing water temperature and temperature.

fish tank heater small aquarium

How to use the temperature setting?

1)Place the adjustable aquarium heater completely in the water and wait for about 10 seconds for the LED light to show the exact water temperature. Then you can set the water temperature.

2)Press the Settings button on the controller repeatedly and the LED number will cycle from 17°C to 34°C. When you get the number you want, stop and wait for the LED to blink 3 times.

3)After setting the temperature, the LED will display the water temperature during the heating time.

4)The heater begins to heat.

small aquarium heater

Auto Shut Off When Out of Water

  • When the tank heater top is out of water, it will stop heating, the led displaying E1, it means you should put the heater fully submerged.
  • It will work normally again when the fish heater is fully in water again, it has memory function, no need extra setting.

water fish tank heater

Use Directions

  1. Keep the heater fully submerged in water.
  2. Don’t bury the heater under substrates such as gravels or sands.
  3. Keep the external temp controller away form water.
  4. Don’t take the heater out of water directly when it’s heating.
  5. Keep water circulation as far as possible.

fish heater

Product Features Design

The plastic cover of the mini aquarium heater has a gap, the width is about 6-7mm,there is no need to worry about fish being stuck or burned. Can protect your baby turtles and fish from getting burned.

aquarium heater 50w

For freshwater or saltwater aquariums

1)A compact black fish tank heater, easy to be hide in tank. With 2 strong suction cups on the backside, the heater will firmly stick on to the tank, no turtles or fish can push the heater out of water.

2)This heater for aquarium fish tank with quartz glass heater tube, durable for use in freshwater and saltwater.

aquarium heater 100w

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hygger Aquarium Heater, Digital Display Mini Submersible Fish Tank Heater(100W),Fast Heating Thermostat with External Controller and Built-in Thermometer Heater for 25-50L Small Fish Tank


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hygger Aquarium Heater, Digital Display Mini Submersible Fish Tank Heater(100W),Fast Heating Thermostat with External Controller and Built-in Thermometer Heater for 25-50L Small Fish Tank
hygger Aquarium Heater, Digital Display Mini Submersible Fish Tank Heater(100W),Fast Heating Thermostat with External Controller and Built-in Thermometer Heater for 25-50L Small Fish Tank
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Price£23.99£21.99£27.99£23.99£48.99£14.99
Delivery
Get it as soon as Sunday, Jan 12
Get it as soon as Sunday, Jan 12
Get it as soon as Sunday, Jan 12
Get it as soon as Sunday, Jan 12
Get it as soon as Sunday, Jan 12
Get it as soon as Sunday, Jan 12
Customer Ratings
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Customer reviews

4.1 out of 5 stars
129 global ratings

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Customers say

Customers find the pet supplies easy to apply and set desired temperature. However, some have reported issues with reliability - stopping working after 8 months or 1.5 years. There are mixed opinions on temperature and functionality.

AI-generated from the text of customer reviews

6 customers mention ‘Ease of application’6 positive0 negative

Customers find the product easy to apply and set the desired temperature.

"Nice product and easy to use but the product is now shwoing te wrong temp reading after 7-8 months use...." Read more

"High quality, easy to use, described as it was" Read more

"Very easy to apply and set wanted temperature...." Read more

"Very happy with it! Easy to use and looks great in the tank. Attaches to tank perfectly x" Read more

3 customers mention ‘Design’3 positive0 negative

Customers like the design. They say it fits well in their water area and draws the eyes to let them know what the fish are swimming around.

"Was ready to use on arrival and has proved reliable. Quite a neat design fitted into the water area of my palladium easily...." Read more

"Small but draws the eyes and let's you know what the fishes are swimming in..." Read more

"Very happy with it! Easy to use and looks great in the tank. Attaches to tank perfectly x" Read more

20 customers mention ‘Temperature’11 positive9 negative

Customers have mixed opinions about the temperature. Some say it's brilliant so far, can heat the top water but the water at the bottom, and quickly brings the water to the right temperature from 16 to 22 within couple hours for a 30 litre aquarium. Others mention it started to show suspiciously high temperature, then went HH (guessing it means too hot) while the water. The digital temp failed and shwoing the wrong reading after 7-8 months use.

"...far I’ve had no issues with the heater it’s great as you can set the temperature yourself and my fish seems to be enjoying the warm water!" Read more

"Nice product and easy to use but the product is now shwoing te wrong temp reading after 7-8 months use...." Read more

"...Temperature shows as lit up number so far easier to read than the more traditional aquarium heaters. Very pleased with it." Read more

"...The Thermo had gone wrong and the water was hot. To touch. Had loads of fish shrimps and pleco they have all died 😭..." Read more

13 customers mention ‘Functionality’8 positive5 negative

Customers have mixed opinions about the product's functionality. Some find it does the job well, has a useful readout, and no issues with the heater. Others report poor reliability, with some units stopping working after 8 months and others experiencing internal thermostat malfunctions.

"So far I’ve had no issues with the heater it’s great as you can set the temperature yourself and my fish seems to be enjoying the warm water!" Read more

"...home from work to see it is displaying a HH symbol and has not been working for some time, for no reason...." Read more

"Nice product and easy to use but the product is now shwoing te wrong temp reading after 7-8 months use...." Read more

"...Temperature shows as lit up number so far easier to read than the more traditional aquarium heaters. Very pleased with it." Read more

5 customers mention ‘Reliability’0 positive5 negative

Customers are unhappy with the product's reliability. They report that it stops working after 8 months, breaks after 1.5 years, and has faults that result in water leakage. Some customers also mention that the product shows inaccurate temperature readings after 7-8 months of use.

"Nice product and easy to use but the product is now shwoing te wrong temp reading after 7-8 months use...." Read more

"Fault and not working with 0 warning, resulting in water temperatures plummeting...." Read more

"Broke after 1.5 years..." Read more

"Terrible reliability. Stopped working after 8 months..." Read more

DO NOT BUY
1 out of 5 stars
DO NOT BUY
I bought this heater for my 50L aquarium, after under four months of use, the internal thermostat malfunctioned, causing every single fish in the tank to be burnt alive DO NOT BUY
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Top reviews from United Kingdom

  • Reviewed in the United Kingdom on 23 May 2024
    Size Name: 50W for 1-25 literVerified Purchase
    So far I’ve had no issues with the heater it’s great as you can set the temperature yourself and my fish seems to be enjoying the warm water!
  • Reviewed in the United Kingdom on 27 August 2023
    Size Name: 100W for 25-50 literVerified Purchase
    Nice product and easy to use but the product is now shwoing te wrong temp reading after 7-8 months use.
    I dont think thisis normal, prbably will purchase another and give it a try!
  • Reviewed in the United Kingdom on 23 November 2024
    Size Name: 50W for 1-25 literVerified Purchase
    I have had this heater what I deem a fairly short time, today I came home from work to see it is displaying a HH symbol and has not been working for some time, for no reason. This has meant my turtle has been in freezing cold temperatures for hours. I cannot seem to fix the issue, extremely dangerous for animals relying on heated water.
  • Reviewed in the United Kingdom on 12 November 2023
    Size Name: 100W for 25-50 literVerified Purchase
    When we changed to small fish in our aquarium we chose the Hygger heater for its exceptionally safe design as the heating element has an enclosure with zigzag circulation slots which are mostly 2mm wide and never more than 3mm, and we have been very happy with its performance for almost a year.
    At this time I noticed that the actual water temperature had become about 2 degrees below the display temperature so I emailed Hygger Customer Support for advice. They have proved quite exceptional - fast responses, most apologetic, with clear advice upon actions to try to improve performance, and the issue was fully resolved.
    I thoroughly recommend this company and this heater. (We also have their air-driven twin tower foam filter which has proved safe and excellent).
  • Reviewed in the United Kingdom on 7 August 2023
    Size Name: 100W for 25-50 literVerified Purchase
    Only had this Thermo since January. Went to feed the fish and they had all died. The Thermo had gone wrong and the water was hot. To touch. Had loads of fish shrimps and pleco they have all died 😭
    4 people found this helpful
    Report
  • Reviewed in the United Kingdom on 23 September 2022
    Size Name: 50W for 1-25 literAmazon Vine Customer Review of Free Product( What's this? )
    Pretty good mini heater and the digital display is very simple to read. I have 2 tanks and struggled a bit on the larger one but it's erfect for the little tank. Very easy to set up and use and doesn't take long at all to hear up. In general is say this is a good heater but recommend o only for a smaller tank.
    2 people found this helpful
    Report
  • Reviewed in the United Kingdom on 3 December 2023
    Size Name: 50W for 1-25 literVerified Purchase
    Was ready to use on arrival and has proved reliable. Quite a neat design fitted into the water area of my palladium easily. Temperature shows as lit up number so far easier to read than the more traditional aquarium heaters. Very pleased with it.
  • Reviewed in the United Kingdom on 26 March 2024
    Size Name: 50W for 1-25 literVerified Purchase
    I baught this in emergency for my Betta fish who had to be seperated from his tank mates as he got sick it heats my 30L tank perfectly and keeps the tank at a steady 27/26c. I have had no issues with it so far I've had it about 2 months now.