Hvxrjkn 10W mini aquarium heater with digital display thermostat for 1 to 5L tanks, black
Evjurcn Aquarium Heater 10W Mini Fish Tank Heater with Digital Display Thermostat Adjustable Temperature 64~93F Set Arbitrarily 5V/2A USB Powered Automatic Power-off for 1 to 5L Tanks(Black)
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Evjurcn Aquarium Heater 10W Mini Fish Tank Heater with Digital Display Thermostat Adjustable Temperature 64~93F Set Arbitrarily 5V/2A USB Powered Automatic Power-off for 1 to 5L Tanks(Black)

Key item features

  • [Mini Aquarium Heater] This small aquarium heater is only 5cm (1.97 inches) in length, takes up less space, and is easy to hide in the fish tank. The temperature range of the American Fahrenheit model is 64~93°F, and the temperature range of the English Celsius model is 18~34°C. Please purchase according to your needs.
  • [USB Powered Tank Heater] This heater is powered by a 5V/2A USB power supply, which is very safe. No need to worry about the fish getting electrocuted. Please use a 5V/2A power adapter (not included) or a 5V/2A power bank (not included) to power the heater.
  • [Precise Temperature Display] Using smart inverter technology, this thermostat maintains the heater at a constant temperature through a built-in chip, which is more precise than knob control of the heater, and the display is easy to read the temperature.
  • [Overheating Protection and Power-off Memory Function] When the water temperature exceeds the maximum temperature range, the fish tank heater will stop working. The heater will remember the temperature setting, and in the event of a power outage, when the power is restored, the heater will follow the last setting.
  • [Widely Used] This fish tank heater is very suitable for small fish tanks of 1~5L. Can be used in fresh and sea water, it can be used not only as an aquarium heater, but also for turtles, pet fountains and plant seedlings.
Current price is $11.79
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4.5 stars out of 5, based on 8 seller reviews(4.5)
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4.4 out of 5 stars
stars52 ratings30 reviews
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Showing 1-3 of 30 reviews

Mar 9, 2026
Michael
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Color: As Shown
Sold byHvxrjknDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Small Package Great product

this product works great it also is super easy to use its been 2 days and my fish haave never been happier thier water was 68-69 regularly and this brought it up to a great 81 and its staying right there. i would by more if i needed them. great product

Helpful?4JKMS44F92J42791289781
Dec 4, 2025
kandee
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Color: As Shown
Sold byHvxrjknDelivered byWalmart
5 out of 5 stars review

Verified Purchase

I bought this heater to warm my freezing beta. I have him in a 1 gallon jar. it works really well, he went from hardly moving looking like death was near to actively swimming around again. the only thing I don't like is that it reads in Celsius. other than that great product

Helpful?4JKMS44F92J42791289781
Dec 29, 2025
Len
Top Reviewer
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Color: As Shown
Sold byHvxrjknDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Far Exceeded My Expectations!

Far exceeded my expectations! It keeps the teperature perfectly and FAST! I set it for 79 degrees and put it in a new Sea Monkey tank where the water was 70 degrees. It hit 79.4 degrees in about 5 minutes. Small tank, but fast adjustment. And over the next several days it stayed at 78.8 to 79.4 degrees even as the room temperature was between 60 to 80 degrees during that time. I am definitely buying a few more of these.

Helpful?4JKMS44F92J42791289781