Dreyoo 2 Set Submersible Aquarium Heater, 100W/300W Adjustable Aquarium Fish Tank Heater with 4 Thermometers Stickers and Suckers, Adjustable Knob Thermostat for Marine Saltwater and Freshwater(100W)
Original price was: $21.99.$20.99Current price is: $20.99.






Price: $21.99 - $20.99
(as of Oct 12, 2025 14:14:58 UTC – Details)
Product description


High-quality heating wires and 2 mm thickened corrosion-resistant quartz glass, suitable for fresh water and saltwater tanks.

With suction cups, easy to fix the heaters in fish tank firmly, no complicated installation steps, convenient and quick for use.

With red indicator lights on both sides, which will be on when powered, easy to know working state.

The thermometer sticker has a range of 39℉ to 97℉ and 4℃ to 36℃, and the temperature sticker is a temperature-sensitive paper with color-coded markings showing the current temperature, which is very easy to read.



Please choose right heater power and quantity according to actual tank capacity and different temperature.
Heating speed depends on the size of fish tank, but installing it close to the circulation pump or filter will help to disparate heat so that the whole tank can warm up quickly.

Package Dimensions : 12.83 x 4.76 x 3.15 inches; 1.23 Pounds
Date First Available : February 8, 2023
Manufacturer : Dreyoo
ASIN : B0BV6SHB79
Best Sellers Rank: #81,217 in Pet Supplies (See Top 100 in Pet Supplies) #200 in Aquarium Heaters
Customer Reviews: 4.5 4.5 out of 5 stars 36 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); } }); });
100W Aquarium Heater: suit for 15 to 30 gallon aquariums, the tank heater is 9.8″ in length, 110-120V and 5 feet plug cable, the package comes with 2 pack fish tank heaters, 4 aquarium thermometer stickers and several suckers
Adjustable Temperature: aquarium submersible heater has an exact temperature scale of 68 to 93 °F, complete control of the water climate within 1 degree of difference; Sensitive and reliable thermostat maintains uniform temperature, when red light on is heating, and automatic shutdown when temperature is reached
With 4 aquarium temperature stickers: the thermometer strips range from 39℉ to 97℉ and 4℃ to 36℃; The temperature sticker is a piece of temperature sensitive paper with color markings showing the current temperature, very easy to read
Distinct Design: the aquarium water heater uses 2 mm thickened quartz glass, can be applied in fresh-water and saltwater aquariums, easy to hide in the tank, which is not easy to crack and safe for people and water animals
Note: the fish aquarium heater need to adjust temperature firstly, and then fix suction cup, and the heater must be completely immersed in the water, finally powered on; Also, if you want to clean tank water heater, and you should wait the heater to cool before removing it
5 reviews for Dreyoo 2 Set Submersible Aquarium Heater, 100W/300W Adjustable Aquarium Fish Tank Heater with 4 Thermometers Stickers and Suckers, Adjustable Knob Thermostat for Marine Saltwater and Freshwater(100W)
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Original price was: $21.99.$20.99Current price is: $20.99.
Tammy Wilkerson –
Great product
Was really pleased with this product. Great value.
Akshay –
had to use both in one tank
i have a 45gallon tank and had to use both at the same time to keep the tankâs tamperatureâ¦but for small tanks i thinks itâs a good valueâ¦size is mediumâ¦.
Morgan Ray Harvey –
50/50 chance.
1 of the 2 quit working within a couple of days of use.
Stephanie –
Works well but neither of the thermometers work.
The heaters work well but neither thermometer work. I took the batteries out and removed the film and replaced them, didnât work. I put brand new batteries in, still didnât work. Also kind of bummed that I cannot stick it to the side of my tank because I have a spherical tank and the suction cups do not stick out far enough for it to stick to the aquarium, that is more my fault for not assessing the product appropriately before buying. If the thermometers would have worked, I would have given it 5 stars.
Meghan Miller –
GREAT!!!
I have a 45 gallon tank and only need one to keep the temperature between 78-80 degrees. I only had to press down on the suction cups once and have not had to touch them since. By far the best heater yet and for a decent price.