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NICREW

NICREW 100W Aquarium Heater with Temperature Adjustable Controller & Dual Sensors, 10-20 Gallon Submersible Fish Tank Heater, Overheat Protection

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Availability: 15 left in stock
Fulfilled by Amazon
Arrives Friday, Jan 9
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Size: 100-watt


Features

  • Temperature Adjustable: External controller features power-off memory function, allowing easy adjustments without wetting hands
  • Precise Temperature: Dual temperature sensor technology for accurate temperature readings
  • Overheat Protection: The heater automatically turns off when water temperature exceeds 98F(36C) to prevent overheating, ensuring safety
  • Efficient Heating: Nickel-chromium alloy heating element for rapid heat-up. Magnesium oxide filling ensures efficient heat transfer into the water
  • Easy Installation: Includes suction cups for secure attachment to the aquarium wall. It is recommended that the heater be fully immersed in water and placed in an area with good water circulation to minimize temperature error

Package Dimensions ‏ : ‎ 12.09 x 4.49 x 2.13 inches; 13.76 ounces


Date First Available ‏ : ‎ August 22, 2025


Manufacturer ‏ : ‎ NICREW


Best Sellers Rank: #18,942 in Pet Supplies (See Top 100 in Pet Supplies) #38 in Aquarium Heaters


#38 in Aquarium Heaters:


Customer Reviews: 4.4 4.4 out of 5 stars (829)


Item Weight: 13.7 ounces


Manufacturer: NICREW


Date First Available: August 22, 2025


Item Package Dimensions L x W x H: 12.09 x 4.49 x 2.13 inches


Brand Name: NICREW


Target Audience Keyword: Fish


Size: 100-watt


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 9

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

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View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Excellent heater for tanks
Size: 300-watt
Excellent product. This has helped our fish tank so much. Quality and a great buy
Reviewed in the United States on November 29, 2025 by Jamie Jones Barrera
    • Great heater
Size: 200-watt
Review Image by Pepper0ni Pepper0ni
Review Image by Pepper0ni Pepper0ni
This heater is splendid. It fits perfectly in almost any tank, it’s only about a foot long. The suction cups haven’t moved since I placed it, so they’re very sticky. The heater functions perfectly constantly. It has run nonstop for a few months with no issue at all, so their longevity is good so far. Overall, great value for the price. I love Nicrew! ... show more
Reviewed in the United States on October 11, 2025 by Pepper0ni Pepper0ni
    • Great little heater
Size: 50-watt
Excellent heater. Put this on my 2.5g tank. I got the 50w and it was easy to set up and get my tank to the right temp.
Reviewed in the United States on December 15, 2025 by Joaquin Ortiz
    • Suction cups suck, not literally
Size: 200-watt
Review Image by Lexx Lexx
I like the digital / visual aspect and that the heater is adjustable. the temp is off, it’s 1.5 ish degrees cooler than what is displayed. i set it at 80 to maintain a high 78/79°. i have checked its accuracy with two other thermometer- both of which display the same reading so i can only assume it’s the heater not registering temp correctly. upon setup of my aquarium, i had to re stick them to the glass at least 25 times each. not exaggeration. however, eventually they just stayed, and i haven’t had to re- stick them since. one last thing that bothers me, the display is upside down. if you are the average person and hide your cords, and have the plug near the floor/ outlet, when using the digital display adjustment, it’s upside down. if you were to place the cord like the outlets are on the ceiling, it would face the right way. but most people’s outlets are below their tanks, meaning the cord is facing down. in this instance the numbers on the display are upside down. i like that they are fully black, and blend in mostly with my blacked out back glass. eventually the plants will hide them completely. ... show more
Reviewed in the United States on November 16, 2024 by Lexx Lexx
    • Good value
Size: 100-watt
Works great on 20 gallon tank, arrived on time
Reviewed in the United States on December 10, 2025 by Ms. Kitty
    • Good purchase
Size: 100-watt
Perfect!
Reviewed in the United States on December 10, 2025 by cynthia
    • Never heated tank
Size: 300-watt
Unit never worked. Installed in my 60 gal aquarium. The light turns on and it reads temp on the screen but it does not heat the water at all. Unfortunately by the time temperatures started to drop and realized this unit is not heating the water I was a couple days out the 30 day return period. Wasted money on unit that never worked. ... show more
Reviewed in the United States on November 21, 2025 by Amazon Customer
    • Tank water heater.
Size: 100-watt
Works great!! No issues and good price.
Reviewed in the United States on September 2, 2025 by Rachel Smith

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