10 Best

Tetra Heaters

of March 2024

  1. Product Highlights
    • 【adjustable water temperature】 simply press the external adjustment button to set the temperature between 18°c-35°c. once the desired temperature is reached, the heater will automatically stop heating. and if the water temperature drops by 1°c, the heater will promptly reheat the water automatically, saving you time and effort.
    • 【auto-off protection】 if the tank heater is not installed properly underwater, or the water level runs low causing the heater to be exposed to the water, it will activate the auto-off function, this safety feature shuts off the heater to prevent dangerous situations. please note that the mini aquarium heater must be completely submerged in water.
    • 【specifications】 small fish tank heater 100 watts for 35-80 litre tanks (instruction specifies 70l capacity, but tests confirm suitability for 35-80l range), ac220-240v, bs plug and 1.2m power cable, includes 3pcs suction cups to securely hold the heater in place. the fish tank heater size is 7.5x11.5x3.3cm, the compact design is not only suitable for fish tanks, but al...
    • 【accurate temperature detection】 built-in accurate temperature sensor, to detect the water temperature and control the heating operation more precisely. and the digital led dispaly is more convenient to read the temperature. when turn on the turtle tank heater, the led will show the real-time temperature, when you press the temperature control button, the led will flash...
    • 【reliable aquarium heater】 made of good quality pc material, which is durable and anti-corossion, makes it an excellent fish tank heater for both fresh water and saltwater, suitable for tropical fish/betta fish/freshwater fish/turtles etc., provides your aquatic pets with a constant and comfortable temperature environment.
  2. Product Highlights
    • 【smart temperature control】 bonlux 100w fish tank heater boasts a 0.5°c precision thermostat. it keeps your fish tank at a constant temperature, automatically powering off when the set temperature is reached. ensuring aquatic well-being while conserving energy.
    • 【effortless temperature control with external controller】 say goodbye to wet hands and tank contamination. bonlux fish tank heater 100w with external temperature controller allows you to easily set the desired temperature without the need to immerse your hands in water or adjust a dial manually. note: the external temperature controller is not waterproof. keep it away f...
    • 【compact and efficient】 the bonlux 100w aquarium heater is a remarkable choice for small aquariums, offering both space-saving design and robust functionality. to ensure accurate temperature regulation, it's essential to follow the provided instructions, including setting up a proper water circulation system and maintaining regular tank cleanups. remember to operate the...
    • 【built-in safety features】 bonlux 100w turtle tank heater is equipped with advanced safeguards. it activates overheating protection, displaying "h1" and halting heating if the water temperature exceeds 34℃/93°f. additionally, it engages dry run protection, displaying "e1" and ceasing heating when the water level drops below the minimum or leaves the surface. rest assure...
    • 【multi-purpose functionality】 bonlux submersible aquarium heater is incredibly versatile. it's suitable for both freshwater and saltwater environments, making it ideal for a variety of aquatic creatures like tropical fish, neon tetra, guppies, angelfish, goldfish, betta fish, sea turtles, and more. beyond aquariums, it's handy for heating pet drinking water, supporting ...
  3. Product Highlights
    • 【dry run / overheating protection】full consideration of safety. with the multiple protections this fish tank heater will stop working when the water level is lower than the minimum water level (dry run protection) or when the water temperature exceeds 97f (overheating protection). you are free from “cooking fish”!
    • 【accurate temperature】 thanks to the intelligent inverter technology, with the in-built chips the thermostat keeps the heater at a constant temperature at an accuracy of 1℃, much more accurate than the traditional knob-controlled fish heaters. the thermostat shows 2 readings – the current temperature and the set temperature – very easy to operate.
    • 【smartphone control】you can connect the heater to your mobile phone bluetooth to control the temperature remotely. the app will monitor the water temperature records in real time, allowing you to easily grasp the temperature changes of the fish tank. no need to run to the fish tank to operate it.
    • 【easy to install】the heater features a small footprint and comes with powerful suction cups so you can easily install it anywhere in your tank. again, this heater is suitable for both seawater and freshwater. place heater inside the aquarium and keeps it fully submerged.
    • 【multiple uses】this fish tank heater can be used for both fresh and marine water. it can be not only used as an aquarium heater, but can also work a turtle heater, pet fountain heater, and plant seedling heater.
  4. Product Highlights
    • 【external controller】easy to set the temp on the controller, only show farenheit temp, you can set the temp range from 63℉ to 94℉, temp accuracy 1℉. every time you set the temp, just press the button over and over until it reaches to your desired temp, then stop and wait the digit flashing for 3 times, then setting is done. keep the controller away from water, it's not ...
    • 【reliable thermostat】this an automatic aquarium thermostat, after finishing the temp setting, you can be confidence on that it will maintain the tank water at the temp you set. the tank heater will stop heating when the water temp reaches to set temp, it will restart to heating when the water temp is 1℉ off the set temp. if the water temp is over 95℉, the heater will au...
    • 【compact small heater】220-240v/60hz oval shape design little aquarium heater, fast heating for small fish tank. 50w tank heater is for 1-6.5gallon, 100w tank heater is for 6.5-13 gallon. heater dimension: 7x3.5x 11 cm. the power cord is 150cm, long enough for use indoors. with 2 strong suction cups at the back side of the betta heater, it's easy to install it on to glas...
    • 【digital display】with led display on the midle of the heater front side, when the fish tank heater is heating, there indicator light above the digit is on red, when it stop heating, the light is off. the heater with a built-in thermometer, when temp setting is done, the led will show the water temp all the time. the led will display the set temp digit only when you pres...
    • 【shut off when out of water】please note that this a fully submersible aquarium heater for fresh water and saltwater tank, when the top part of the heater is out of water it will auto shut off and the led displaying e1, when fully in water again it will return to normal work again
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  5. Product Highlights
    • 【automatic constant temperature with 0.5°c accuracy】thanks to advanced intelligent frequency conversion technology, the water temperature can be kept constant with an accuracy of 0.5°c. the heater's working frequency will be changed according to temperature variation, and the heating is automatically stopped when the set temperature is reached. compare to traditional he...
    • 【external temperature controller, never wet your hands】use an external controller to set the temperature instead of immersing your hands in water to rotate the dial. never wet your hands or contaminating your tank. strong suction cups, easy to install.
    • 【super mini size, 50watt for 40 liter】 yukihalu 50w aquarium heater is designed for 40 liter mini fish tank. compact design, take less space in the fish tank, easy to hide in the tank. temperature can be accurately adjusted from 18 to 34°c. this heater suitable for both saltwater and freshwater. the rated voltage is 220-240v.
    • 【overheating protection, out of water protection】the power will be cut off and stop heating automatically if the heater out of water or overheating. protect your fish. never cook your fish. 30days full refund, 12-months warranty.
    • 【built-in thermometer, power-off memory function】dual built-in temperature sensor, the water temperature will be displayed on the external temperature controller in real time. no need to buy other aquarium thermometer. the heater will remember the temperature setting, no need to reset the temperature after power off.
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