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boxtech Small Fish Tank Heater - Mini Aquarium Heater, 50w Submersible Turtle Heater with Adjustable Temperature External Controller for 3 to 12 Gallon Betta Aquarium Tanks

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$26.92

$ 12 .99 $12.99

In Stock

1.Size:50w For 3 To 12 Gallon Tank


  • ๐Ÿ“๐ŸŽ๐ฐ ๐Œ๐ข๐ง๐ข ๐€๐ช๐ฎ๐š๐ซ๐ข๐ฎ๐ฆ ๐‡๐ž๐š๐ญ๐ž๐ซ: Small tank heater fits 3-12 gallon aquarium with 5.35ft power cord. Temperature can be accurately adjusted from 68 to 93ยฐF. Ideal for use in low water level turtle tanks, fish tanks, betta tanks etc.
  • ๐Ž๐ฏ๐ž๐ซ๐ก๐ž๐š๐ญ๐ข๐ง๐  ๐š๐ง๐ ๐ƒ๐ซ๐ฒ ๐‘๐ฎ๐ง๐ง๐ข๐ง๐  ๐๐ซ๐จ๐ญ๐ž๐œ๐ญ๐ข๐จ๐ง: Intelligent induction unit with auto memory function, can be safer for you and your fish. Fault code: E1 - Anti-dry protection, E2 - Overheating protection. Take the heater out of the water and put it back in when the error code appears.
  • ๐‹๐„๐ƒ ๐ƒ๐ข๐ ๐ข๐ญ๐š๐ฅ ๐ƒ๐ข๐ฌ๐ฉ๐ฅ๐š๐ฒ ๐š๐ง๐ ๐„๐ฑ๐ญ๐ž๐ซ๐ง๐š๐ฅ ๐“๐ž๐ฆ๐ฉ๐ž๐ซ๐š๐ญ๐ฎ๐ซ๐ž ๐‚๐จ๐ง๐ญ๐ซ๐จ๐ฅ๐ฅ๐ž๐ซ: Digital temperature display can easily see real temperature and error code. External controller can let you adjust the temperature you want without getting your hands wet.
  • ๐„๐ง๐ž๐ซ๐ ๐ฒ-๐ฌ๐š๐ฏ๐ข๐ง๐  ๐š๐ง๐ ๐…๐š๐ฌ๐ญ ๐‡๐ž๐š๐ญ๐ข๐ง๐ : Thickened explosion proof quartz tube design, safety and durability. Designed with metal-ceramic heaters are energy efficient and will maintain a constant aquarium water temperature after 72 hours of continuous heating.
  • ๐‚๐š๐ฎ๐ญ๐ข๐จ๐ง: Press and hold for 3 seconds to toggle between ยฐC and ยฐF. Do not bury the heater in sand or mud; immerse the heater vertically in fish tanks and horizontally in turtle tanks.



Product Description

5 gallon fish tank heater
mini aquarium heater
Mini Betta Fish Tank Heater
small submersible aquarium heater
small aquarium heater, turtle tank heater,
fish tank heater

Tiera J.
2025-08-20 15:01:01
The media could not be loaded.
Jenny
2025-08-19 17:48:56
I ordered two out of the gate, one for my ten gallon and the other for my one gallon. Itรขโ‚ฌโ„ขs only been a week, but Iรขโ‚ฌโ„ขm genuinely amazed (so far). Suction is terrific and as others have said, theyรขโ‚ฌโ„ขre aesthetically pleasing. The one gallon heated up from 68 degrees to 78 in under three minutes. I couldnรขโ‚ฌโ„ขt believe my eyes. When I went to install the second in my ten gallon, at first I thought it was no good and Iรขโ‚ฌโ„ขd have to send it back. Turns out, there seems to be a safety feature where the device must be fully immersed to work. The instructions with these arenรขโ‚ฌโ„ขt the greatest, but I was able to quickly troubleshoot it and get it working in the ten gallonรขโ‚ฌยฆ and literally watched it go from 66 to 80 in under five minutes. For a tiny heater like this in a tank that size - I was shook. I just ordered a third for my five gallon. The exterior remote is super convenient and easy enough to navigateรขโ‚ฌยฆ hold the button down to switch between Fahrenheit and Celsius (I didnรขโ‚ฌโ„ขt see this in the instructions either so it was a personal learning curve). That said, all in all they seem to be a fantastic device at a nicely affordable cost. If you donรขโ‚ฌโ„ขt see me come back to edit this in the future, you can assume that they sustained their functionality and I remain entirely satisfied.
Daisy
2025-07-30 18:48:01
Perfect compact size, works just as well as a full size long heater, big plus being able to see the temperature and also easy to clean.
Nikki
2025-07-17 12:02:38
I had high hopes for this heater, I loved the look and it was easy to set up. All was great at first. Then today something told me to double check the temp of the tank (I do this often for this reason) I had it set to 78 my tank was at 75. The display was green said it was 78 checked with two types of thermometers tank was 75. I turned it up to 80 again went up to 80 and turned green, checked the temp it was still 75. So disappointed. Why is it so hard to find a tank heater that actually works and stays working?
S. Kennedy
2025-05-18 10:42:51
This item matches the description and works as expected. Easy to set up and read temperature.
Julia K
2025-05-17 17:37:28
perfect for my 10 gal tank
C Chan
2025-05-16 15:48:54
My 3-gallon betta tank had one of those preset non adjustable heaters that just wasnรขโ‚ฌโ„ขt doing the job in winter weather despite a heated house. This heater was easy to setup, easy to use right out of the box. I have a separate thermometer that confirms itรขโ‚ฌโ„ขs heating to what I have it set at. My fish is happy and active again now that this heater is installed! I canรขโ‚ฌโ„ขt comment on longevity of this product yet as Iรขโ‚ฌโ„ขve had it for 2 weeks.
Nathaniel
2025-05-09 14:19:41
I like how it looks and I like the digital readouts. The heater worked really well for about a month but I noticed it started making a screeching noise. It is still heating the aquarium but it sounds like the thermostat is failing. I ordered a new heater from a more reliable brand because I no longer trust it. I don't recommend this product.
Cierra DoCouto
2025-04-11 15:45:02
Great heater for my little 3 gallon beta tank easy to operate. Looks good no complaints. Highly recommend.
Dylan
2025-04-05 17:30:41
I have a 10 gallon tank and it really has no problem with that size. After changing your water it rakes very minimal amount of time to get to your desired temperature. It looks so clean with a digital display and doesnรขโ‚ฌโ„ขt take up to much space. Suctions right to the glass and always displays a very accurate temperature even if it drops 0.1 it will start to heat up again until it hits my exact desired temp. My Snow White guppyรขโ‚ฌโ„ขs seem to especially love it as they will sometimes circle it round and round.
Fred
2025-01-26 11:13:16
This heater is quite small, the thermometer on it seems to be precise and it's great that you can set a temperature target and the heater turns on automatically if needed. My Betta seems to be happy with it!
Kiersty
2025-01-15 12:03:24
Easy to use and warmed my tank within a few hours. My fish donรขโ‚ฌโ„ขt seem bothered by it. Overall happy with the results.
Billy
2024-12-29 12:30:59
It occasionally showed an E1 error even while submerged, so I had to unplug and plug it back in to get it working again. After three months, the E1 error kept appearing, and now it doesnรขโ‚ฌโ„ขt work at all, even after resetting.
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