AQQA Submersible Aquarium Heater,100W/200W/300W/500W/800W/1000W/1200W Fish Tank Heater,External Temperature Controller LED Temperature Display,Suitable for Saltwater and Freshwater(100W)
Original price was: $45.99.$37.99Current price is: $37.99.
Price: $45.99 - $37.99
(as of Oct 14, 2025 13:20:33 UTC – Details)
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Product Dimensions : 11.4 x 2.14 x 1 inches; 2.09 Pounds
Item model number : FCA-AQ015-100W
Date First Available : September 17, 2020
Manufacturer : AQQA
ASIN : B08J9XGKHY
Best Sellers Rank: #24,260 in Pet Supplies (See Top 100 in Pet Supplies) #56 in Aquarium Heaters
Customer Reviews: 4.3 4.3 out of 5 stars 2,100 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Explosion-proof Quartz Glass Aquarium Heater Durable and Safer: Made of a high-temperature resistant nickel-chromium heating wire with silicon carbide heat conduction, faster water heating and long lasting; 2 hours heating 1℃; The shell is a high temperature resistant PC material, which can effectively protect the fish from scalding
Temperatures Ranges 68℉ to 93℉: The heater built-in thermometer, when the water temperature is lower than the set temperature by 1℉, the heater will automatically heat up; when the water temperature is consistent with the set temperature stop heating; Pressing and holding for 5 seconds changes temperature display from Celsius to Fahrenheit
LED External Controller with Indicator Light: The number above the controller is the current water temperature, the number below is the set temperature; Red light means heating; Blue lights indicate constant temperature; Blue light flashing indicates the heater not fully submersibled; The controller is not waterproof, please keep away from water
Dry Burning-resistant Protection: When the heater is 5 cm above the water surface, automatically power off and the controller display “E1”; When submerged in the water again, return to normal, no need to unplug the power or reset the controller; Controller 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
Adjustable Hooks, Controller Can Be Installed: A hook can be installed on the back of the controller to hang on the fish tank; The size of the hook can be adjusted according to the thickness of the fish tank, very safe and reliable
Customers say
Customers find the aquarium heater easy to use and appreciate its accurate digital display. The heater performs well, heating tanks quickly and maintaining precise temperatures, though some report temperature readings being off by a lot. While the functionality is mixed, with some units working well while others stop working, and the quality is generally positive, customers report units melting after just four months.
11 reviews for AQQA Submersible Aquarium Heater,100W/200W/300W/500W/800W/1000W/1200W Fish Tank Heater,External Temperature Controller LED Temperature Display,Suitable for Saltwater and Freshwater(100W)
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Original price was: $45.99.$37.99Current price is: $37.99.
Ray C. –
Reliable, Accurate, and Affordable
I’ve got the AQQA 300W heater on my 55-gallon planted tank for about a month now, and I am thoroughly impressed. I was a little skeptical because of the low cost, but this unit works!Setup was a breeze â the suction cups are solid, and the screen is clear and bright (even from across the room). I put it on 77°F and it’s been rock-solid ever since. The digital control is very user-friendly, and I like that it has a built in themometer. You can actually see when it’s heating and when it’s idle.My fish and plants seem happier with the stable temperature, and Iâve noticed less condensation and glass fog near the heater, too. Itâs also very quiet â absolutely no humming or clicking like some other brands Iâve used. All in all, Iâd say this heater performs just as well as others Iâve used that cost twice as much like fluval.Edit – I had to return this one because I found another heater that fits in my canister filter. But it doesn’t change the fact that this was a great heater.
Jason –
Works Great!
I bought this for use when making salt water in a 40-gallon trash can. It works great! I have a RO/DI system in the house which takes a couple hours to fill the can. I plug this in as soon as the water submerges the heater. It does an excellent job of heating the water as the can fills. The water is always heated to 77 degrees by the time I mix in the salt and am ready for the water change. I love it!
Darrin –
Solution Error fix!
I see complaints about people that owned this for a year and they start getting error messages after the warranty expired. The same thing happened to me, but first I saw the heater was active way more than it should be (for a while) the difference is I know how (I think) to fix it.FIX FOR THE ERROR MESSAGEif you look at the heater it builds calcium up just like any other heater so you have to clean it. I would not buy any dealer solution for it as you FISH LIVE IN THIS WATER so I use vinegar and water. I took a pic of it soaking and as bad as it is it’s going to take a few days so I recommend getting a secondary heater while this happens. Unfortunately don’t have one so I came back to order a 2nd one and hope my fish will be ok.I’ll update this if it doesn’t work but if I don’t then it did
Joni A –
Excellent heater
I used it in my outside fish pond in new york. It worked great
D K. –
worked great for 2 weeks then catastrophically failed in a very bad way
I bought the 200 watt version of this heater for my 29 gallon aquarium and it malfunctioned after 2 weeks. Came home to find that the water looked cloudy. The display indicated that the unit was set to heat the water to 81f and that the temperature of the water was 78f. Put my hand in the water, clearly not 78f. I temped the water with a digital thermometer that I know to be 100% accurate and found the water to be at 95f. I was expecting this heater to be reliable because of its digital controls and its advertising that boasted about its accuracy and reliability because of its its dual temperature probes. It specifically mentioned that if a temperature probe failed it would not keep heating up the water — âIf one of the probes is broken, the entire heating rod will stop working. There is a double insurance to prevent the probe from being broken and the heating rod will continue to heat upâ—. I should also point out that the advertising of this heater indicates that it has an over temperature alarm which never went off on my unit because the electronics on this thing couldnât even tell that the water was hotter than 78f. The heating element was basically on 24/7 because the heater thought the water was at 78f when in reality it had already heated the water up into the 90âs. I recommend that nobody buy a heater over 100 watts unless it is really required for your setup to reach the temperature you want. That way if it fails there is less of a chance of it heating up your aquarium to unsafe temperature levels.
Helene Spieler –
Replace after a year. Solid heater but could use improvements.
I have an 800 watt in my 125. Audible worked great for being out of water and did fairly well keeping up with the temperature I set.My community fish have a healthy range of temperate requirements. I set my tank for 77 and mainly used it in an upright pisition next to one if the filter intakes for the 1st several months until I could aquire items that would allow me better circulation for a more even heat distribution.At around 9 months I changed its orientation to a tilted horizontal one. This worked better but still my circulation needed some improvements to keep an even distribution.At 16 months, I rescaped my tank removing a dead central spot between my filters and added full accross spray bars instead of jets. This set up prompted me to center the heater horizontally tilted. After a few days I noticed tank temp went up drastically but thought it may have been my arrangment of hardscape and moss trapping heat. After some adjustments, I reset the heater and monitored it for a few weeks and all was working perfectly.The tank and heater is now about 18 months old and I almost had a catastrophic incident. My water was 91 degrees!!! Thank goodness my spidey senses triggered and I caught it before any losses.Please allow us more control for the audible alarm and max heat threshhold in a future design.Additional options for temp sensors would also be welcome. Thankfully I had another one of these heaters along with an inkbird ready to go. But dont be like me and try and stretch its lifespan past a year, replace it after 12 months or use another controller as additional safety measure.
Believe !! –
I Purchased This unit due to the good reviews and it did not disappoint.It works well and the thermostat is accurate.Strong rugged material, qood quality.I had a concern with the unit, I emailed customer service for some support, they responded within hours, and it was resolved same day.Great customer service !!!
Steve Paiva Viveiros –
Works perfect
Lura Rogers –
Super easy to install, heavy duty power cables!
Tony –
Use it for my fish pond, working well.
Chantelle –
Tried 3 other thermometers and they failed, this one is the best in the world. Shows the temperature, can see when it’s heating best design ever!