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)
Original price was: $19.99.$17.99Current price is: $17.99.
Price: $19.99 - $17.99
(as of Apr 08, 2025 22:42:21 UTC – Details)
From the brand
Small aquarium heater
High power aquarium heater
Super small aquarium heater
Is Discontinued By Manufacturer : No
Product Dimensions : 4.3 x 0.98 x 0.98 inches; 8.47 ounces
Item model number : SC-06A050
Date First Available : October 13, 2021
Manufacturer : YukiHalu
ASIN : B08JQNKDPM
【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 93°F. This heater suitable for both saltwater and freshwater. The rated voltage is 100-130V.
【Automatic Constant Temperature with 1℉Accuracy】Thanks to advanced Intelligent Frequency Conversion Technology, the water temperature can be kept constant with an accuracy of 1℉. 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 Protection】The 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 Hands】Use 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 Function】Dual 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 maintenance】The 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 installation】Check the glass tube first before installation, if the glass tube is cracked (not completely broken), do not use it
Customers say
Customers find the aquarium heater easy to set up and use, with a nice small size that’s perfect for 7-gallon tanks. The temperature control receives mixed feedback – while some say it maintains the desired range, others report it struggles to keep temperature consistent. The heater’s functionality and value for money also get mixed reviews, with some saying it works well while others report it stops working after 4 months and consider it a waste of money. Moreover, durability is a concern as units break within 8 weeks, and accuracy receives mixed feedback with some finding it very accurate while others say it’s not accurate at all.
AI-generated from the text of customer reviews
13 reviews for 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)
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Original price was: $19.99.$17.99Current price is: $17.99.
Merman –
Really nice heater on the second go round
I liked the adjust ability and digital temp display on this nano tank heater. The first one just wouldn’t settle properly on the desired temp and was 6 degrees high on the display. I returned it and got the new one with no problem….Thanks to Amazon’s wonderful business practices. This heater is right on the temp and works the way I had hoped. My old heater still worked but the temp is not adjustable and I needed one to push up to 80 degrees f for tank cycling/bacteria growth. This heater does that job to a tee. And the display is very nice feature now that it’s accurate.
Kindle Customer –
Great, mostly
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.
Amazon Customer –
Did not work ð
This had great reviews so I bought 2 for 2 small palladiumâs 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 ð¢ 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 donât 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 wasnât 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. ThanksSo 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 heatersâ¦..
Esteban Valdez –
fragile
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.
Jessica Janeway –
Not exactly strong enough
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.
Nick Butera –
Amazing heater for price
Itâs perfectly sized and the temp does stay within range easily. Only complaint is the display is often immaculate of actual water temp (mine varies by .8 degrees) but it doesnât matter that severely overall quality purchase for the price
Charity Conzone –
Stopped working within 45 days
*edited to add I changed my star rating to a 4 from a 1 as the seller reached out to me and offered a full refund of the heater.*This was bought as a replacement for the one I purchased in November (and accidentally broke). It stopped working just past the 30 return notice.
Courtney Bowe –
Worked great for exactly one year
This heater worked perfectly fine keeping my tank at a lovely 80 degrees, until basically the one year mark (literally it stopped working within days of having it for a year). Unfortunately it happened to be the coldest time of year when the room temp gets down to 65 degrees. Thankfully I had some back up heaters and I didn’t lose any fish.
Thegamer21 –
Works well
Jordy GarcÃa –
El tamaño es perfecto, muy discreto y de buenos materiales. El termometro integrado ayuda mucho y tarda poco en alcanzar la temperatura deseada.
DANIEL –
Excelente artÃculo, hace muy bien su trabajo en mi acuario mantiene la temperatura ð¡
Marbel –
PARFAIT POUR MON AQUARIUM DE 37 litres
Julie Matthews –
So far this little heater is excellent for nano tanks. I like that itâs adjustable, easy to figure out, and keeps the tank at a stable temp, Iâve not seen it fluctuate hardly at all in the three months Iâve had it set up. I will say that the power cord is very short, so youâll hav to have a plan for that, otherwise it is very cute, in a traditional glass tube heater kind of way. itâs not as fancy looking as the ones with guards but i am happy with it for doing itâs job for such a small tank. Would buy again