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 (25 Watts)
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Availability:
In Stock.
Arrives
Wednesday, Aug 6
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Size: 25 Watts
Features
- Super Mini Size, 25Watt for 1-5 Gallons YukiHalu 25W aquarium heater is designed for 1-5 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.
- 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.
- Daily maintenanceThe suction cups must be cleaned every month to prevent the heater from falling off and breaking because the suction force is weakened by stains.
- Check before installationCheck the glass tube first before installation, if the glass tube is cracked (not completely broken), do not use it
Is Discontinued By Manufacturer : No
Product Dimensions : 4.3 x 0.98 x 0.98 inches; 8.85 ounces
Item model number : SC-06A025
Date First Available : October 13, 2021
Manufacturer : YukiHalu
Best Sellers Rank: #18,244 in Pet Supplies (See Top 100 in Pet Supplies) #26 in Aquarium Heaters
#26 in Aquarium Heaters:
Customer Reviews: 4.1 4.1 out of 5 stars 2,356 ratings
Item Weight: 8.8 ounces
Manufacturer: YukiHalu
Item model number: SC-06A025
Date First Available: October 13, 2021
Item Package Dimensions L x W x H: 5.94 x 4.17 x 2.01 inches
Item Dimensions LxWxH: 4.3 x 0.98 x 0.98 inches
Brand Name: YukiHalu
Target Audience Keyword: fish
Directions: The heater must be fully submersed into the water
Color: Black
Size: 25 Watts
Material: quartz & plastic
Care Instructions: It must be used under rated voltage 100-130v, Read instruction carefully before use, Do not plug the device into a outlet before placing it in water
Breed Recommendation: Turtle tetra betta tortoise kinds of small fish
Specific Uses for Product: out of water protection, overheating protection, Adjustable temperature, LED digital display, small size, easy to hide in mini tank, constant the water temperature
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Aug 6
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 100 Watts
Never cracks or malfunctions, does the job and slowly heats water, keeps it warm throughout the winter. I would definitely recommend to keep your house and fish safe. never overheats.
Reviewed in the United States on May 11, 2025 by Nicholas
Size: 50 Watts
UPDATE: Customer service reached out and was very kind and helpful! Still be careful not to brake it! It is a great size. Unfortunately I only got to use it for one day. The 24 hours it was in use were good. Temp. was stable and accurate. The suction cup kept un-suctioning causing the heater to fall into the sand. so this morning cleaned that area of the tank very well and tried to make sure the suction got a really good grip. Since the heater was plugged in I merely detached it from the suction gripper thing and left it in the water whilst I worked with the suction cup. I thought a good suction was achieved, slid it into place and went to put the heater part in its place. This is where my soul was crushed. Popped the little heater back in, and it taped the back of my aquarium glass causing the glass on the heater to break. I immediately unplugged and went to remove the heater. The tip came all apart. This released the black glittery sand that is all inside. UHHGGGHHH this is such a pain to clean up. It doesn't seem to be bothering the fish (hopefully it really is just sand) but it is everywhere! Cleaned it up the best I could, but its impossible to get it all. I feel as if i was glitter bombed. Now I'm out a heater, out the like $18 (don't feel right asking for a refund since it was my fault ) and spent a morning doing extra water changes. grr. However if you are VERY careful i think you can still enjoy this heater.
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Reviewed in the United States on November 7, 2022 by Esteban Valdez
Size: 25 Watts
The media could not be loaded. This had great reviews so I bought 2 for 2 small palladium’s with 5-7 gallons of water each. I loved the digital control which makes it easy to check your temperature anytime at a glance. It took me much longer to complete the first palladium than I thought. I am 12 days past the 30 day return 😢 I got my tank completed, planted & hooked up the heater. The lights on the controller worked & appeared to set the desired temperature, however it never heated the water. I kept thinking that I was doing something wrong or maybe it was the AC vent near by so I have spent the past 4 days covering the AC vent re-reading the instructions & trying to reset it still thinking it was me. Finally I got my husband involved & he had the same problems. I reached down & touched the heater & it was stone cold. It must be a heating element or something. It even reads the current water temperature correctly because I tested that with an aquarium thermometer. I am just sick it don’t work. I have already ordered my vampire crabs & they will be delivered next week. I really loved this heater & wished it had of worked or that I could get another one. I will try the second heater & report back to let everyone know if it works or not. I understand things happen & it could just be a one time thing. I included a video of the unboxing, it was packaged very well. Also a photo of one of the many test I did trying to make sure I wasn’t making a mistake & finally my palladium I built for vampire crabs. My only hope is that the second heater works & maybe this company will see fit to replace the broke one. I will gladly change my review to 5 if I can get a replacement. Thanks So no update I accidentally broke the second heater, I dropped it. I did take photos of the 2 side by side. The one with orange wires is the one I worked with. The second one with gray wires looks like it was hooked up different, I think the first one was probably defective. Now I have to rush & buy yet another 2 heaters…..
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Reviewed in the United States on September 15, 2023 by Amazon Customer Amazon Customer
Size: 100 Watts
It's great for my 20 gallon, the only issue being that I have to have it set about 2-3 degrees higher than the temperature I want it at (I want my water to be 75 degrees and so I have the heater set at 78) but other than that it's consistent and the water level dose not fluctuate at all.
Reviewed in the United States on January 5, 2025 by Kindle Customer
Size: 50 Watts
I got this for my 10 gallon betta tank. Its set to 80, but in the winter it usually hovers around 75. I love that I dont have to worry about it causing problems when I do my water changes, and that alone is worth keeping this around.
Reviewed in the United States on March 23, 2025 by Jessica Janeway
Size: 25 Watts
I was given a 3-4 gallon Betta tank with built in filtration and led lighting with a betta in it. Loving the tank. but I wanted to watch it while I eat and cook so I put it next to our window in the kitchen and it kept dipping into the 60's and the Betta just sort of laid around. Figured he needed some heat. Bought this, tested it in a jar over night. Worked perfectly. Raised and lowered the temperature without a problem the next day, of course it was a bit slow. So I placed it in the tank hoping it would not look to bad. Cannot even see it against the black filtration side. No one notices it at all. I will try to post photos. Have had it since for almost 4 months now and have had no problems. Love the external digital thermostat controls and switch.
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Reviewed in the United States on February 21, 2024 by Been around and back again
Size: 100 Watts
I base my purchases on the reviews of others, but obviously it’s not hard to still be nervous about a product yourself; but the reviews were right! This works amazing! I was previously using the 100W for my 20 gal, however had to upgrade my turtle hatchlings to a 55 gal aquarium, which is obviously over the recommended for the heater, however it still keeps the temperature! I’ve had terrible heaters in the past that overheated and affected previous aquariums, so I love that the temperature is always currently displayed. Definitely helps my anxiety. Even with the aquarium 3/4 full, it heated the water from probably close to 60F to 85F within the hour, and has maintained ever since! I definitely love to keep my place cold, and it’s nice having a reliable aquarium heater to keep my turtles and fish comfortable and healthy. Can’t wait to buy more for future tanks!
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Reviewed in the United States on December 5, 2023 by Savannah
Size: 50 Watts
This is my second one. Just put it in as my old one finally stopped working. Its so easy to adjust the temp on this. I like not having to stick my hand in the water to adjust the temp. I always have to adjust the temp in the winters and the summers here.
Reviewed in the United States on November 6, 2024 by Lisa & Frank Lisa & Frank