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HITOP 50W 100W 300W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cup (300W)

  • Based on 6,560 reviews
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Availability: Only 10 left in stock, order soon!
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Arrives Tuesday, Jun 4
Order within 13 hours and 38 minutes
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Pattern Name: 300W


Features

  • [Aquarium heater]: HITOP 300W aquarium heater, length 10.4-inch, power cord 4.9ft, designed for small fish tanks, recommended for aquariums 45-60 Gallons.[
  • [Adjustable and easy to use]: This aquarium heater, adjustable temperature range 68 ~ 93 F, after setting the temp you want, will on or shut off automatically when the water temperature changes, no extra adjustment is required.
  • [Accurate Temperature Control]: This fish tank heater built-in thermostat, will automatically keep the water at the set temperature within2F error. Comes with an sticker thermometer to detect water temp at any time.water temp at any time.
  • [Thickened glass]: 2mm thickened quartz glass, 33% thicker than normal aquarium heaters, much safer for both human and animals.
  • [Accessories]: An stick-on thermometer, and three suction cup meet your needs. 12 months warranty.

Package Dimensions ‏ : ‎ 13.3 x 3.19 x 1.85 inches; 10.23 ounces


Date First Available ‏ : ‎ January 3, 2020


Manufacturer ‏ : ‎ Haisen


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 4

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


  • Works great!
Pattern Name: 100W
I've been using this heater for 4 months now. I wanted an adjustable heater since I keep my house cooler. I wanted to keep my tank on the cooler side of ideal so that the tank isn't heating my house. My only real complaint about the heater is that the bottom cap kept falling off. It's just a plastic sleeve. I took a silicone one off an old heater that I was tossing and am using that instead. Really, the cap isn't necessary unless you're worried about the glass banging into stuff. The clips are holding well. Make sure you are clipping near the light and above so that the plastic isn't in contact with the heating element at the bottom. Temperature of the tank has stayed consistent. Oddly, even though the heater is black, when it is submersed, the top becomes a light gray. I wish it was black, but that doesn't affect how it works. I would be happy to buy another one if I needed to for another tank. ... show more
Reviewed in the United States on February 20, 2024 by Julianne Kowalski Julianne Kowalski

  • Regulates like a Champ
Pattern Name: 50W
Working great in the aquarium (50w version in a 10 gal). Maintaining 77 degrees even though it is by the window and it is 12 degrees outside. Quality build and great value. I have 3 tanks with 3 different heaters and this is the best
Reviewed in the United States on January 14, 2024 by Spuds

  • It works
Pattern Name: 50W
First time I used it temp went above 80. I had it set at 76. Turned it off, let the tank cool down, restarted it. Seems to be working fine. Maybe I didn't read it correctly, All good!!
Reviewed in the United States on September 15, 2023 by Amazon Customer

  • Works as described.
Pattern Name: 200W
I read reviews before I bought and most of them were good so I decided to give it a try. The directions said to set the temperature about 4°F below the temperature you want to that's what I did. It took about 2 hours to heat to the temperature I set it to but I wanted it warmer so turned it up where I wanted it. Took about another 30 minutes and reached desired temp. I have been watching close all day to make sure it doesn't over heat and it has been doing it's job perfectly. I would have given 5 stars if it had an on/off switch but unfortunately to turn it off to adjust temperature setting it has to be unplugged. A bit of a hassle but overall I am happy with my purchase. I bought a 200w heater for a 46 gallon tank. ... show more
Reviewed in the United States on October 12, 2023 by Linnea Ruzzo

  • Great small heater
Pattern Name: 25W
Some of my fish died because I forgot to heat the water before a water change. I use this heater to resolve this issue by heating the water before a water change. It works well.
Reviewed in the United States on February 21, 2024 by ahj

  • Good Heater
Pattern Name: 100W
Honestly this is a nice heater. It works better then the namebrand one I kept having to buy, because it would quit working. Make sure to check your water within 24 hours so you can adjust the heat. It definitely gets warm...
Reviewed in the United States on February 8, 2024 by A.Naglosky

  • Great product
Pattern Name: 100W
Work’s great
Reviewed in the United States on February 15, 2024 by Jasmine Ramos Jasmine Ramos

  • DO NOT BUY - FIRE HAZARD - MELTED IN MY TANK - FISH ALL GONE
Pattern Name: 50W
PLEASE DO NOT BUY THIS! I just had a devastating loss in my tank because this thing decided it wanted to get hot and melt all all the plastic clips. It probably shocked my entire tank! I just did a water change on my 10 gallon tank. I always shut down my heater, filter, and air bubblers. Once the water gets high enough to cover the heater, I start everything up again. Jesus, I had just put the last gallon of water in the tank and all I could see was smoke. I thought it was my light, but it was coming out of the water because everything was melting. I switched the main power button on my surge protector. My fish started flopping and sinking to the bottom. I had a net that I was able to catch a few tetra fish that were at the top. My shrimp darted to the top of the tank, then nose dived to the bottom and turned upside down. I am so upset right now. I just lost 5 fish and a dozen shrimps. Probably will lose my assassin snails and two other tetra fish that I was able to get out of my tank. I have several pest snails that are now laying on their sides that will probably die. But those are not such a big deal. I spent nearly 6 months on this tank getting everything right. I just didn't have a heater, and opted for this one because of all the "Wonderful Reviews". Don't do it people. I am adding photos, not of my fish that were loss. ... show more
Reviewed in the United States on December 5, 2023 by Malissa Atkins Malissa Atkins

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