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Mylivell Aquarium Heater 25W 50W 100W 200W 300W Submersible Auto Thermostat Fish Tank Heater, Small Aquarium Heater for 10-100 Gallon Fish Tank, Freshwater & Saltwater Compatible

  • Based on 3,757 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Nov 24
Order within 23 hours and 15 minutes
Available payment plans shown during checkout

Color: 100W for 20-45 Gallon


Features

  • Superior Safety and Enriched Ambiance: The fish tank heater is constructed with high-quality shatterproof glass and BPA-free plastic, ensuring a safe habitat for your fish. Aquarium heater 100W, power cord 4.4ft, designed for most fish tanks, recommended for aquariums 20-45 Gallons.
  • Precision in Temperature Control: This aquarium heater excels in providing a customizable temperature range of 68F-93F, catering to various aquatic species. Suitable for freshwater and saltwater tanks, it creates a natural environment for your finned friends.
  • Compact, Versatile, and Efficient: Whether you have a small aquarium heater 5-gallon tank or an aquarium heater 55-gallon setup, this compact heater can be placed horizontally or vertically. Position near a filter or pump for even heat distribution.
  • Smart, Worry-Free Heating: Equipped with an intelligent automatic temperature control system, this small aquarium heater ensures optimal comfort for your fish by switching off when the desired temperature is reached and back on if water temperature falls.
  • Dedicated Support and Guaranteed Satisfaction: Purchase with confidence knowing that this heater for fish tank is built with robust materials and safety features. Especially the polarized plug prevents electrical shock. We stand by our product with a 12-month warranty and 24/7 professional after-sales service.

Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 11.6 x 2.7 x 1.5 inches; 7.2 ounces


Date First Available ‏ : ‎ August 28, 2018


Manufacturer ‏ : ‎ Mylivell


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Works very well
Color: 300W for 65-100 Gallon
Works very well, heats up quickly, happy customer!
Reviewed in the United States on December 8, 2023 by Quadrifoglio

  • shatterproof glass
This heater is robust and sturdy. The temperature is easily adjusted and accurate. I find no problem after using it for a month.
Reviewed in the United States on February 1, 2024 by Rachel

  • Not raising temp above 72 in a 15 gallon tank
Color: 100W for 20-45 Gallon
100 watt Mylivell heater not raising temp above 72. i have checked with thermometer comparing against other tanks so the thermometer is good. I have changed electrical receptors. I'll have to put old 50 watt heater back in. On Dec. 16th they said they would send a replacement. As of Jan 9th I have not seen a replacement or heard from them again. I did receive my replacement and it works great. ... show more
Reviewed in the United States on December 12, 2019 by Tim Maag

  • 100W Heater
Color: 100W for 20-45 Gallon
Safely packaged to prevent breakage of the glass tube. Very informative User Manual sheet.
Reviewed in the United States on February 11, 2024 by SHC37

  • Just what I wanted!
Color: 100W for 20-45 Gallon
Works as it should.
Reviewed in the United States on February 19, 2024 by Pappy

  • It works
Color: 50W for 10-25 Gallon
I didn't think it was working then the temp started droping in my house and it came on, fish is still alive.. so were good 👍
Reviewed in the United States on November 25, 2023 by Dawn

  • Aquarium heater
Color: 50W for 10-25 Gallon
Works great
Reviewed in the United States on November 28, 2023 by Janice Mcshane

  • Nothin to complain about.... except temperature accuracy
Color: 100W for 20-45 Gallon
Little to complain about with the product. Ive had it in my 20 gallon for about 2 days now and the heater is getting more and more precise, temperature wise, as the days go on. Right now I have it at 82 but the water is 79 so not bad, could be something on my part but overall. Does its purpose pretty well REVISION ON FEBRUARY 3rd 2020 The temperature gauge is still very iffy and I have little confidence it will ever be truly accurate. I can have it at 82 and the water will be 78. Or 86 and the water will be 81. Just aggravating now having a constant heat for my tank ... show more
Reviewed in the United States on February 1, 2020 by Xavier Harris

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