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FREESEA Aquarium Heater Fish Tank Submersible Heater (50W/75W/100W) with LED Temperature Display

  • Based on 7,320 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, May 26
Order within 18 hours and 14 minutes
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Size: 75Watt_


Features

  • FREESEA Aquarium Heater: 75w betta fish heater, voltage: 110~120V, is suitable for use in 5-15 gal betta fish turtle tanks and aquariums. The power cord is 5ft, long enough for indoor use
  • Double Safety Protection: When the top part of the turtle tank heater is out of water it will auto shut off. When the actual water temperature is higher than 94F, it will auto activate the overheating protection and stop heating
  • External Controller: The betta fish heater is adjusted by an external controller, which you can mount on the outside edge of the tank. Its convenient to adjust temperature that range from 63F to 94F
  • LED Temperature Display: Digital led temperature display shows the real-time temperature and error code on the screen. When the mini aquarium heater is heating, there indicator light above the digit is on red
  • 12-month Warranty: We are committed to providing high quality products and better service with a 12-month warranty. If you have any questions about the turtle heater you receive, please feel free to contact us

Product Dimensions ‏ : ‎ 3.9 x 2.7 x 1.1 inches; 8.15 Ounces


Date First Available ‏ : ‎ October 8, 2022


Manufacturer ‏ : ‎ FREESEA


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 26

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.

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Top Amazon Reviews


  • Impressive
Size: 50Watt
Our house is under major construction and our poor beta still resides inside the cold house temperature. Our beta heater wasn’t holding up in the cold fall weather. I decided to try this heater out and it’s beyond amazing. I honestly didn’t do much research before. I was looking for something to come fast. I sure lucked out on this purchase. Our beta is happy and the heater can hold up to an house that isn’t insulated. It’s amazing. You can set the temperature you desire. I wasn’t so sure if the temperature gage would be accurate so I kept my other temperature reader in the tank. It’s pretty accurate to our other. ... show more
Reviewed in the United States on November 13, 2022 by *K*

  • Finley on the fence
Size: 50Watt
This worked fairly well in my 3 gallon tank but temperature probes were needed to verify that the heater was producing correct heat for the tank. When it was in my 20 gallon I had to up the heat in order to make sure that the whole tank was at a good temperature.
Reviewed in the United States on November 29, 2022 by Kindle Customer

  • Update: Be aware! Heat increase alows bacteria and fungi grow!!!
Size: 50Watt
Update: March 1st, after two weeks of using heat, my Bandit start developing darkish spot on few scales near tail fin. First I didnt worry, but then literally in a week, spot got bigger, it started bulging and developed white color stuff on top of black looking scales. I realized heat allowed either fungi or bacteria grow rapidly. His tank is about 3gal, he is alone, no other fish. Got Beta antifungal drops and aquarium salt. Took out all gravel. I use distilled water with Betta complete water conditioner. Now I am using API salt and Pimafix fungal infection drops. For about last 3 days Bandit is lethargic and most of the time stays low or hides in his house. He was happy for first two weeks with heater hanging around it all the time. I never had any fish or Betas before, I got him in August 2017, he was healthy and spunky til recently. Now he doesnt seem to be hungry, I watch him for about 15 min to swim up to eat. Right now he sleeps in his house and wont come out. I am heart broken to think that I might have make him sick by heating up water. I change water every couple weeks. Bandit has fresh 3 live Marimo balls, which suppose to absorb impurities. I have water pump for circulation, heater right now is on 72, just about low comfort level. I been using Antifungal drops since Mar 5th, dont see any improvement yet, but it doesnt seem getting worse either. I absolutely hate to think I might have caused him getting sick! I spent so much money on this little guy for his comfort, but I didnt think I could cause him harm =(''' Apparently I need to learn how to care properly for Bettas, since I never before had any fish. I got him in Petco in August 2017. When I walked by Bettas, they are in those tiney round containers laying there docile, he was the only one who went bezerk and started pounding on container, which made me look at him. He was looking at me and I heard this voice in my head " get me out of here!" I even looked around thinking where did this voice came from? Next thing I know I reach for his container...That day I dropped over 100bucks. 3gal tank, gravel, food, water drops etc. I came home thinking how did that happen and how do I best care for him? I went to Petco to buy litter for my Izabella and ended up with Bandit. I love him, he was happy in his new home, being able swim around. Now he is just lethargic, hiding in the house. I am sure heat has something to do with it. Now I am trying to reverse damage. For people like me, who dont know much about Betas, this is lesson to be learned. Original review: I got this heater Feb 14th, plugged in and it heated up quite fast, I would say in 30min temp was warming to his comfort level. I set it for 78F. I have one Beta boy, on these cold arctic days water temp got below his comfort zone, as per thermometer. My Bandit was laying low and wouldn't swim around much. When I plugged in heater, he was drawn to it immediately, he was staring at it for a while and then just hanging around it for warmth. My poor Beta was cold without heater =(''' Now that water temp is comfortable for him, which is 22-26C or 72-80F, I can see his spunky self swimming around happy! His water thank holds almost 4gal, I have gravel, water pump, not filter, and heater, and I can see my Bandit is happy. Now he has better appetite also, and I don't have to watch him for 15min before he swims up to eat, now he eats right away. I realized that he wasn't comfortable in colder temps and I am very glad I got this heater for him! Very well worth the money thus far. I wish there was option for C temps, but its only for F. Instructions are very simple, immerse heater all the way into water, plug in and press temp button. I am glad for this purchase and my Bandit is happy! I recommend this heater. 4 stars only because no C option, otherwise 5 stars. ... show more
Reviewed in the United States on February 17, 2019 by Ms.Smarte Blonde

  • It keep falling of
Size: 50Watt
It really did create a warm tank but it wasn’t really that accurate to the actual temperature, it would only be one degree off but it wasn’t bad. It keep falling of from the side of the tank. It’s not bad for the price so it’ll be up to you if you’ll buy it
Reviewed in the United States on November 8, 2022 by Kat

  • Worked for about two weeks top
Size: 50Watt
I didn't like how it only worked for a week... checking the water after a week is super cold however the displayed temperature says 82 degrees.
Reviewed in the United States on November 4, 2022 by MizzLegit

  • Does The Job
Size: 100Watt
Quite happy with the water heater. Was a bit challenging to understand how the controls worked, since no instructions were included in my box. Not sure if it was just my box. But shortly after using it, I could figure out the steps to set it up. So far haven't had any issues. My Beta fish seem to be happy as well. ... show more
Reviewed in the United States on October 7, 2022 by Fredy M.

  • Works Well Enough
Size: 100Watt
I’ve kept fish for nearly 10 years. I have this in my 10 gal and bought it for my betta. It heats well and is pretty accurate according to my thermometer. However, the suction cups don’t work too well and I’ve had to re-attach it multiple times.
Reviewed in the United States on October 7, 2022 by Monica Anderson

  • Worked for 8 months.
Size: 50Watt
I bought it in March and haven't really used it except for the last month or so. It quit today November 14. No light, no heat.
Reviewed in the United States on November 14, 2022 by david howard

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