Search  for anything...

YukiHalu Small Submersible Aquarium Heater, Adjustable Mini Fish Tank Heater 25W 50W 100W 200W 300W with External Temperature Controller, LED Display, Used for 5/10/20/40/60 Gallons (50 Watts)

  • Based on 1,574 reviews
Condition: New
Checking for product changes
$18.99 Why this price?
Save $4.00 was $22.99

Buy Now, Pay Later


As low as $4 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Nov 24
Order within 10 hours and 16 minutes
Available payment plans shown during checkout

Size: 50 Watts


Features

  • Super Mini Size, 50Watt for 3-10 Gallons YukiHalu 50W aquarium heater is designed for 3-10 gallons mini fish tank. Compact design, take less space in the fish tank, easy to hide in the tank. Temperature can be accurately adjusted from 64 to 93F. This heater suitable for both saltwater and freshwater. The rated voltage is 100-130V.
  • Automatic Constant Temperature with 1FAccuracyThanks to advanced Intelligent Frequency Conversion Technology, the water temperature can be kept constant with an accuracy of 1F. The heater's working frequency will be changed according to temperature variation, and the heating is automatically stopped when the set temperature is reached. Compare to traditional heater, this new technology will cut down 49% electricity bill for you.
  • Overheating Protection, Out of Water ProtectionThe power will be cut off and stop heating automatically if the heater out of water or overheating. Protect your fish. Never cook your fish. 30days full refund, 12-months warranty.
  • External Temperature Controller, Never Wet Your HandsUse an external controller to set the temperature instead of immersing your hands in water to rotate the dial. Never wet your hands or contaminating your tank. Strong suction cups, easy to install.
  • Built-in Temperature Sensor, Power-off Memory FunctionDual built-in temperature sensor, the water temperature will be displayed on the external temperature controller in real time. No need to buy other aquarium temperature meter. The heater will remember the temperature setting, no need to reset the temperature after power off.

Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 4.3 x 0.98 x 0.98 inches; 7.83 Ounces


Date First Available ‏ : ‎ October 13, 2021


Manufacturer ‏ : ‎ YukiHalu


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
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great Little Heater with one flaw
Size: 50 Watts
This is a great little heater because it doesn’t take up a lot of space, and I love the external temperature control. Very simple to adjust the temperature as opposed to having to put your hands in the aquarium or read a tiny indicator on the heater knob. However, I can’t give it five stars for one flaw. The manufacture found it necessary to label the heater in large letters with Mini Heater. Really? I guess I would’ve known it was a heater if it wasn’t labeled. I set this tank up as a breeder tank, so I really don’t care for anyone who’s setting up a nice decorative aquarium, having a piece of equipment labeled in large letters is unsightly It’s just unnecessary. Previously is was labeled with the manufacturer name, which is a little better. ... show more
Reviewed in the United States on August 30, 2023 by K Reader K Reader

  • Finally!
Size: 25 Watts
This is a great product for the price! I originally was going to go to the local pet store but this was more cost efficient AND it has a built in thermostat that I couldn’t find anywhere! My turtle is finally happy with a heater that can keep him warm!
Reviewed in the United States on September 4, 2023 by Chasity

  • Great "micro" heater...
Size: 25 Watts
If you're OK with your small aquarium water temperature between 76 - 80 degrees Fahrenheit, this is a great buy! It's automatically set to 78 degrees and not customizable, which was the only detractor for me. Keep in mind, submersible heaters typically keep the water within 2 degrees of the setting, so as long as that temperature range is good for your aquarium, it's definitely worth it! ... show more
Reviewed in the United States on August 4, 2023 by KimberlyH

  • Suction cup…meh.
Size: 50 Watts
Suction cup could be more effective. Interior heater connects to an exterior digital readout unit. No more squinting to read results. A plus is that the desired temperature is not preset and permanent. You can set your own temp. Even when not in use, it’s helpful to see temp of tank at a glance. Would buy again. ... show more
Reviewed in the United States on July 13, 2023 by Amazon Customer

  • Great heater!
Size: 50 Watts
This is a great fish tank heater. It’s not too big and the fact that you can control the temperature and it will automatically keep it at the temperature is awesome! I’ve gotten two for both of our fish tanks. As compared it to the old type of thermometer that you just stick to the inside of the tank and it seems to be pretty accurate. The nice thing is that it does heat up the water pretty quickly. I have not had any issues with it hurting the fish and it seems very sturdy. It also completely submergible so I don’t have to worry about that either. For the price, it’s definitely worth it! ... show more
Reviewed in the United States on July 12, 2023 by Michelle R

  • Works good
Size: 100 Watts
My room is air conditioned so it drops my tanks temp by 2 degrees but very happy with it
Reviewed in the United States on July 15, 2023 by jesus estrada

  • Seems to work but....
Size: 25 Watts
They both seem to work great for my tanks. The only *slightly* annoying part is that one of them is in Fahrenheit and one is in Celsius. I ordered them at the same time and the one in Celsius has the sticker for Fahrenheit on it. Not an end of the world issue but definitely threw me off for a second. ... show more
Reviewed in the United States on June 14, 2023 by Brittney Moe Brittney Moe

  • Seems to keep the tank warm
Size: 25 Watts
My Frogs aren't suffering at all. Seems to work great.
Reviewed in the United States on August 19, 2023 by Misha Lawing

Can't find a product?

Find it on Amazon first, then paste the link below.