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FEDOUR Mini 10W USB Aquarium Heater with External Controller
- USB plug interface, 5V low output voltage, safe and convenient.
- This finger-sized heater is very small and can be hidden easily in the fish tank.
- This 10W heater is suitable for fish tanks under 3 gallon.
How to use this mini aquarium heater?
- USB plug interface, 5V low output voltage, safer to use, plug adapter not include.
- After all the accessories are assembled, completely submerge the heater in water and then powered on.
- Turn the knob of the temperature regulator to the needed temperature, and above the green light is the set temperature(Each dot on the knob represents 2℉). The upper red light indicates heating.
- Attach the thermometer sticker to the outside of the fish tank to check the temperature. Water temperature will be influenced by the water volume, water circulation, the measuring position of the thermometer.
10W USB Submersible Aquarium Heater
USB mini aquarium heater, safer and more convenient.
This Aquarium Super Mini Heater is recommended to be used in less than 3gallon fish tank, turtle tank, betta tank, which is small in size.
Low power, no overheating, providing a more comfortable living environment for your lovely pets.
- SIZE: Length: 1.6IN/4CM
- Power cable: 4.9FT/1.5M
- Power: 10W
- Input Voltage: 110-120V/60Hz
- Output Voltage: 5V
- Temperature Range: 64-93℉
- Accessories: 1 Thermometer Sticker, 2 Suction Cups, 1 bottom protective cover
The heater is very small and slender, like a finger.
- This mini heater can be placed in the corner, not easy to be found, so it will not affect the beauty of the fish tank.
Thickened Quartz Glass & Quartz Sand Filling Material
- Anti-explosion/corrosion
- Spread the Temperature Evenly.
Bottom Protective Cover
- Keep off the bottom and protect the Heater.
External Temperature Controller
- Set the temperature by turning the knob (The number above the green light is the setting temperature).
- The red light indicates the heater is heating. When the heater stops heating, the red light goes out.
Powerful Suction Cups*2
- The heater can be firmly attached to the inner wall of the aquarium with 1 or 2 suction cups.
Double Seal Design
- Leakage-proof & Prevent Water Ingress
Kim Adams
Reviewed in the United States on May 1, 2025
I love how small this heater is. It is perfect for some of my smaller tanks or if I am traveling with fish. I also love how it it USB powered so that I can both travel with it and, in a pinch, use battery bricks to power it if need be during a power outage. Not a huge fail of the dial to set it and I did find it to be a couple degrees off, but honestly that is pretty standard it seems with just about all aquarium heaters.
teresa
Reviewed in the United States on February 17, 2025
Heater is maintaining 78 degrees since installed 24 hours ago in my 1 gallon Tetra ColorFusion tank. The thermometer supplied that sticks on the aquarium never registered a temperature. So, I ripped that off and went and bought a inside mounted thermometer.
C. Cox
Reviewed in the United States on January 9, 2025
This is the perfect heater for my home office's 1.5 gallon freshwater shrimp tank! It's the smallest aquarium heater I've ever seen, but at 10W it has no problem keeping that tank at the constant temperature required for my shrimp to thrive. My tests show that it's able to raise the temperature more than 10 degrees above my winter room temperature (60s) relatively quickly. Like most of the aquarium heaters I've tested, its temperature readings may be off by a degree or two. If that's an issue for you, I recommend confirming it independently with a thermometer you trust.Unlike most 120 volt heaters on the market today, this lacks a digital display, instead being set by a dial with temps around the face like on a clock. The control also has a green light to let you know the power's on, and a red one indicating that it's actively heating. I like that the cord is a generous length, almost 5 ft.
Amanda Rogers
Reviewed in the United States on January 3, 2025
Until fish tanks come with built in heaters, which I actually learned recently they can now, this mini heater is super helpful for the smaller 2 gallon tanks I have that wouldn't do well with the larger heaters.Until I can invest in the fish tank with the built in heaters, which is super expensive, this is a nice option to have
Sarah
Reviewed in the United States on January 1, 2025
I have this in a 2 gallon tank, it is doing the job. The temp dial is a little off and skips numbers and such. I have it set at like 75 but my thermometer shows at around 77/78. Make sure you have a thermometer when you use this so you can appropriately adjust the temp dial. Other than that works as intended. I have another on the way for a 3 gallon.
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