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AQQA Submersible Aquarium Heater,100W/200W/300W/500W/800W/1200W Fish Tank Heater,External Temperature Controller LED Temperature Display,Suitable for Saltwater and Freshwater

  • Based on 1,911 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Thursday, May 9
Order within 7 hours and 54 minutes
Available payment plans shown during checkout

Size: 500W (for 66-135 gallon)


Features

  • Explosion-proof Quartz Glass Aquarium Heater Durable and SaferThe heater made of explosion-proof quartz glass material and a high-temperature resistant nickel-chromium heating wire with silicon carbide heat conduction,faster water heating and long lasting.2 hours heating 1C.The shell is a high temperature resistant PC material, which can effectively protect the fish from scalding.
  • Temperatures Ranges 68F to 93F,Automatic HeatingThe heating rod built-in thermometer,When the water temperature is lower than the set temperature by 1F, the heater will automatically heat up, and stop heating when the water temperature is consistent with the set temperature.Fahrenheit and Celsius can be converted to each other,Pressing and Press and hold "+" and "-" at the same time, Fahrenheit and Celsius will be converted into each other after 5 seconds
  • LED External Controller with Indicator LightThe controller is not waterproof, please keep away from water,LED digital display screen shows the current water temperature and preset temperature.The number the left on the controller is the current water temperature, and the number on the right is the set temperature,torch light and surrounding lights flicker means heating,torch light and surrounding lights not flicker indicate constant temperature.
  • Memory Function,Dry Burning-resistant ProtectionController with memory function,If power is shut off,the heater will keep the temperature settings until it powers on again,no need to worry about pets when you going out.When the heating rod is 5cm above the water surface, the heating rod will automatically power off, and the controller will display "E1". When submerged in the water again, the heater will automatically return to normal, no need to unplug the power or reset the controller.
  • Controller Can Be Installed with Adjustable HooksA hook can be installed on the back of the controller to hang on the fish tank. The installation is very simple and no tools are needed.The size of the hook can be adjusted according to the thickness of the fish tank,Very safe and reliable.AQQA products enjoy a 1-year warranty, please rest assured to buy.

Product Dimensions ‏ : ‎ 3.4 x 2 x 11.2 inches; 2.95 Pounds


Item model number ‏ : ‎ AQ020


Date First Available ‏ : ‎ September 17, 2020


Manufacturer ‏ : ‎ AQQA


Best Sellers Rank: #18,987 in Pet Supplies (See Top 100 in Pet Supplies) #39 in Aquarium Heaters


#39 in Aquarium Heaters:


Customer Reviews: 4.4 out of 5 stars 1,911


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 9

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


  • Aqqa submersible heater
Size: 200W (for 45-80 gallon)
The media could not be loaded. Works very well. Heat up fast, gives a warning when water level is low.
Reviewed in the United States on March 20, 2024 by vHiNz

  • Very awesome, but be careful
Size: 300W (for 80-95 gallon)
This product was the best, longest working aquarium heater I've had yet. I purchased it in 2021, and it never failed me until the end. A few days ago I came home and smelled something electrical burning. Turns out it was this heater. The control box was fried. However, I do not fault the heater as about 3 weeks ago I had over filled the tank and all my electrical got wet. But it did not electrocute my tank at all when it failed. Buying another right now. ... show more
Reviewed in the United States on November 18, 2023 by Mythicalyss

  • This is great
Size: 200W (for 45-80 gallon)
It works flawlessly
Reviewed in the United States on March 10, 2024 by Kevin

  • It’s working in pond
Size: 1200W (for 132-264 gallon)
Ordered 1200 watts and along with another one now I have 72 degree all night . Only 2 nights but so far very happy
Reviewed in the United States on March 17, 2024 by Andrew amur

  • Worked great for while. (update - Replaced free after 9 Months, no Issue)
Size: 200W (for 45-80 gallon)
Does what it supposed to. Stays within 1 deg all the time and I love the digital readout. It might be a bit larger than the usual ones because of the plastic guard on it but I got used to it and it looks great now in the tank. Make sure to clean it out, it gets very dirty inside that plastic housing. UPDATE: After 9 months it died, shows EE and I cannot fix it. Tried cleaning it , let it dry out, Unplugged it for a day. Nothing, It will show the proper temp for about 3 mins then "EE" and it shuts off... Poor fish got cold. Looks like the warranty is 1 year? I Lowered the rating from 5 to 2 . Contacting Vendor, I'll update UPDATE- After contacting the Vendor and telling them the issue, they immediately sent a new heater, It was here in 5 days. Very impressed. I raised the star rating to 4 from 2 due to the customer service. Let's see how long this one lasts. ... show more
Reviewed in the United States on December 15, 2022 by Hammy

  • started to malfunction within a year
Size: 300W (for 80-95 gallon)
I purchased this unit last feb20, 2023 for the last three days it has been malfunctioning giving the EE error and beeping tried unplugging and plugging in, tried the temp adjustment button on top. but it only begins to function properly for a while and then goes back to EE and beeping. the temperature has dropped but occasional rises a bit in between beeping sessions. I spent the extra $$ to get something that lasts but this version is not much better than the other brands, Im hoping to get exchange or $ back as this unit is within the 1 year warranty. ... show more
Reviewed in the United States on February 3, 2024 by Kaikoa Buchanan

  • Great heater with simple, easy to access controls
Size: 100W (for 25-35 gallon)
This is a powerful heater that holds temperature very well. Compared to my marina 100w heater in the photo, it does look rather bulky, but it blends in just fine in my cichlid tank. When I first plugged in the heater, my current temp readout was at 76f and I set it to 80f. It took about an hour to reach 80f, which is fairly quick. My marina heater takes a few hours. The temperature has been holding all day, even in a colder room. My room temp at the moment is 70f, with the window slightly cracked open and the tank is about 3 feet from the window. It kicks in when it's 1 degree lower, which is more ideal for those with sensitive livestock. Some heaters don't kick in until the temp is down to 5f lower than your desired setting! You don't have to worry about wide temperature swings with this unit. I appreciate the exterior temp readout and control module. It comes with a hanging kit and can be secured on the edge of the tank. It does take a few presses to get to your desired setting, because there's only one button. It just cycles through to 93f and starts over. Pressing and holding the button for 5 seconds changes it from F to C readouts. The suction cups are very good quality and didn't give me any trouble, but time will tell. Another thing I appreciate is that it has a memory setting in case the power goes out. I tested it by unplugging and replugging it. The setting always stayed the same. This gives me peace of mind. The only thing I do not like about the exterior module is that it can be easily accessed by kids... and kids love pushing all sorts of buttons... But I am single and don't have to worry about this.. Just be careful and keep an eye on your temp settings when you have kids over! Or better yet, conceal it to the back corner. It does blend well in some setups and may look bulky in others. This is something to consider. Personally for me the housing doesn't bother me. I'm not a big fan of the big glass tubes. My yellow lab cichlids are too big to fit in the slots, so I don't have to worry about any misadventure. I will keep testing this throughout the upcoming season and will update on any changes. ... show more
Reviewed in the United States on November 3, 2020 by Chill_Murray Chill_Murray

  • great heaters so far
Size: 500W (for 66-135 gallon)
First off the heaters are pretty big, so keep that in mind. I ordered 2 of the 500 watt for my 125 gallon tank. The suction cups are very strong. The controllers are nice and easy to use/mount. They hold temp very well. I have a digital temp probe in a different spot in the tank and it reads 1-1.5 degrees F higher that the controllers do, which I am fine with. Will buy them again for another tank. ... show more
Reviewed in the United States on August 19, 2023 by Ryan

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