AQUANEAT Aquarium Heater, 50W Fish Tank Heater, Adjustable Submersible Water Thermostat with Thermometer
$8.67
Price: $8.67
(as of Oct 08, 2025 10:43:23 UTC – Details)
Product description
Cautions:
1. Please confirm that the power supply voltage matches the rated voltage before use.
2. For all the glass heaters, please carefully examine whether there is any damaged part before installation. Do not use it if it has a damaged cord or crack and contact with us.
3. IPX8 design, non-detachable, do not disassemble it, otherwise it will damage the heater.
4. The heater MUST be fully submersed under water before plugged in.
5. Unplug it and wait for at least 10 minutes before changing water or taking the heater out of water; it is forbidden to take it out immediately after unplugged.
6. Do not bury the heater under sand.
Tips for Using Aquarium Heaters:
1. To get an even and thorough heat distribution in the tank, it is recommended to place the heater to an area with good water circulation.
2. The aquarium temp will fluctuate depending of the room’s ambient temp so it is normal that it has differences within ± 3°F, and if the room temp is below 60°F, you need to choose a more powerful heater than recommended in the list.
3. To avoid injury, do not touch the heating part directly.
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Customer Reviews
4.4 out of 5 stars 571
4.4 out of 5 stars 571
4.4 out of 5 stars 53
3.6 out of 5 stars 548
4.4 out of 5 stars 53
4.3 out of 5 stars 595
Price
$6.58$6.58 $8.99$8.99 $16.98$16.98 $28.88$28.88 $13.49$13.49 $6.88$6.88
Size
4.5″x 0.8″x 0.8″ 4.5″x 0.8″x 0.8″ 11.5″ x 0.8″ x 0.8″ 8”x 5.25” x 7” 6.75”x 0.8”x 0.8” 4″x 2.75″ x 1.5″
Package Dimensions : 8.43 x 3.19 x 1.85 inches; 5.29 ounces
Date First Available : February 29, 2024
Manufacturer : AQUANEAT
ASIN : B0CWQW6FYX
Best Sellers Rank: #3,928 in Pet Supplies (See Top 100 in Pet Supplies) #8 in Aquarium Heaters
Customer Reviews: 4.2 4.2 out of 5 stars 621 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); } }); });
The 50W aquarium heater is recommended for 5 to 15 gallon fish tank; heater length: 6.75”; power cord: 3.6ft; voltage: 110V/60Hz
Adjustable Temp: An easy-to-access dial on the top makes it a breeze to adjust the water temp from 65°F to 89°F.
Steady Temp: The red light automatically shuts off when the target temp is reached and then the heater keeps a constant temperature in your marine or freshwater aquarium.
Includes: 1x 50W Small Aquarium Heater, 2x Suction Cups, 1x Thermometer Strip
Cautions: Always keep it fully submerged under water before plugged in, and unplug it and wait for at least 10 mins before you do aquarium maintenance or take it out of water.
Customers say
Customers find the aquarium heater works well and is good value for money, with one mentioning it saved their fish and snails. The temperature control receives mixed feedback – while some say it maintains the correct temperature, others report it doesn’t keep the proper temperature and the dial is pointed to a higher temperature range. The heater’s sturdiness is concerning, with multiple reports of it shattering or bursting and exploding. The quality and heat transfer performance also get mixed reviews, with some finding it good while others report poor quality and it taking longer to warm the water. The adjustment mechanism is particularly problematic, with customers noting that the knob is extremely hard to turn.
8 reviews for AQUANEAT Aquarium Heater, 50W Fish Tank Heater, Adjustable Submersible Water Thermostat with Thermometer
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$8.67
Tara –
Not pricey but pretty good quality
For the price definatly worth it, obviously it does take a bit to get the water to the right temp when you first put it in, but it is going up slowly so I can tell its working. I got it for my 10 gal tank. I dont think it works when you put in on the dots between the numbers tho. One thing i realized is that the suction cups can pop out when you take it out, at first i thought I broke it but they pop right back in.
JOHN M –
Opinión
Bueno
MarcusJr Engrum –
Awesome heater super happy with this purchase
Keeps my Betta fish tank a steady temperature. Good buy for the money.
Pickled brownie –
Could be better
Update – since writing this review⦠the tank barely holds a temp of 80° which i have it set to. It fluctuates from 78-80.3 at randomI do not recommend this to anyone that needs a consistent set temperature for their fish. Luckily it hasnât get too cold but it clearly canât keep the temperature you set it to.I be purchase the 50W heater for my 5.5 gallonIâm not super impressed with this heater. But I needed one for my beta tank as the one he had wasnât strong enough to keep up with the temps he needs to be happy.Hereâs a list of the issues Iâm having..The suction cups broke within the first few daysThe knob to adjust the heat is very hard to get it in the right spot for the temperature needed. Once i got it to the perfect temperature(80° for me). I noticed that it will fluctuate within 2 degrees below. At first it was over night that it would drop to 77. Then during the day itâd get back up to 80°. Within the last week it has been fluctuating between 78.8 and 80. So it seems to not be changing the temps as bad as the first week.The size is a bit big for my tank but the 25W would have been the same size too. And with it being fully submergible it was easy to place it towards the bottom at the back of the tank.The good things? It at least keeps the tank warmLight does indicate when itâs on.For the price you pay for it of course things will probably be wonky.I dont think Iâd purchase this for my 40g if i ever needed a new heater. But again my 5.5 is doing ok with it.
Diana –
Good small heater overall
Good heater overall for the price. Was looking for a shorter heater for my 10 gallon and this was one of the smaller ones I found. Took off a star only because the dial is nearly impossible to turn easily and you do have to keep the temp set a little higher than what you want your tank at for it to maintain your desired temperature.
Oveta K Nicks –
Aquarium heater
Works great
Paul PTwall –
Great value
Great value for my QT tank. So far no issues with temp.
Bri –
shattered
had for about 2-3 weeks, was pretty happy until it shattered and debris ruined my tank