Reviews 3 Gallon Fish Tank Heater

HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off When Leaving Water for Saltwater and Freshwater

  • 【Rapid Heating and Two Temperature Control System】300W aquarium heater is sutable for 40-75 gallon fish tank and made of the most stable nickel-chromium heating wire, which can quickly and stably conduct heat to the surroundings. It has a built-in temperature control system of Fahrenheit and Celsius(Temp range: 63-94℉/17-34℃). You can press and hold the button next to the controller for 2-3 seconds to switch..
  • 【Intelligent Water Sensor and Over Temperature Protection】This fish tank heater has a unique intelligent temperature and water sensor system, the heater will automatically stop heating when the heater is completely out of water or it rapidly heats beyond the set temperature, the indicator light will turn green in both cases to ensure the maximum safety of you and your aquatic organisms just like protecting our own safety..
  • 【Explosion-proof Quartz Glass Aquarium Heater】The submersible aquarium heater is 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 longer lasting. And the stronger black shell is a high temperature resistan....
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Hydor Betta Bowl Slim Fish Tank Heater, 4-watt, Measures 3" Round, Black; for Tanks 1-2.5 gallons

  • The Slim heater will increase the water temperature of mini aquariums up to 10 gallons by a few degrees compared to the ambient room temperature. The Slim heater can be used in glass, acrylic, plastic fish bowls and aquariums. Safe to use under gravel. Please note, Slim heaters are not suitable to be used in environments without water.
  • Extra small slim heater is a great choice for Betta fish & suitable for fish tanks 1 to 2 1/2 gallons, measures 3" x 0.25" , 4 watt.
  • Plug and Play universal fish tank heater.
  • slim heater provides warmth for betta fish without taking up much room..
  • Heater can easily be placed submerged in water or even under the tank gravel.
  • The 90 degree angle makes this great for Betta acquariums.
  • Safe to use in glass, plastic and acrylic fish tanks.
  • Plug & play universal fish tank heater, the slim fish tank heater can be used in both fresh or saltwater environments.
  • Easy to hide fish tank heater is ideal to use for betta fish, gold fish and glow fish.
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YukiHalu USB Powered Submersible Aquarium Heater, 10W/5V/2A Adapter, Mini Fish Tank Heater 10W with Built-in Thermometer, External Temperature Controller, LED Display, Used for 0.5-1 Gallon Tank

  • 【Super Mini Size, 10Watt, below 1 Gallon】YukiHalu 10W aquarium heater is designed for the mini fish tanks less than 1 gallon. Compact design, take less space in the fish tank, easy to hide in the tank. Temperature can be accurately adjusted from 64 to 93°F. The rated voltage DC 5V/2A. Important tips: insufficient power of the adapter will cause no heating and the number will flash or the controller restarts repeatedly, make sure the power adapter is 5V 2A and has enough power..
  • 【Automatic Constant Temperature with 1℉ Accuracy】Thanks to advanced Intelligent Frequency Conversion Technology, the water temperature can be kept constant with an accuracy of 1℉. 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 heater, this new technology will cut down 49% electricity bill for you..
  • 【Overheating Protection & DC 5V USB supply】The power will be cut off and stop heating automatically if the heater overheating. Protect your fish. Never cook your fish. USB 5V power supply, prevent electric shock. 30days full refund, 12-months warranty..
  • 【External Temperature Controller, Never Wet Your Hands】Use an external control....
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PULACO 25W Small Aquarium Betta Heater with Free Thermometer Strip, Under 6 Gallon Fish Tanks (Preset Temperature 78℉)

  • ★【Betta Heater】This Fish Tank Heater should be 100% submerged into water, Ideal for small glass or acrylic desktop aquariums up 1 to 6 Gallons, not suitable for less than 1 gallon tank..
  • ★【Quick and Easy Installation】:Vertical or horizontal placement using, Aquarium heater automatic temperature control 78℉, no need to adjust temperature, easy to operate, fishes happy..
  • ★【How it Works】: Plug in, red light turns on, the heater will start working until water temperature up to 78°F, and red light off, then the green light will turn on, heater stop working and keeping constant temperature 78°F. Accuracy：±3°F.
  • ★【Note】: Do not operate or leave product plugged in when your water tank is out of water, heater should be fully submerged into water. Please install a water pump or filter to help water circulating while heating..
  • ★【SATISFACTION GUARANTEED】Our Aquarium Heater is built with durability in mind and safety for every design. In the remote possibility that you’re not satisfied with our product, just contact us, and we will gladly give you a new Aquarium Heater replacement. 12 Month Warranty and 24 Hour Professional After-sales Service..
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Kulife Fumak 200W Adjustable Aquarium Heater Super Short Submersible Fish Tank Heater Fish Heater with LED Digital Display Thermostat, for Tanks 20-40 Gallons

  • ...e market! It is only a bit more than HALF of the length of the traditional aquarium heaters! The innovative super short length perfectly solves the headache of the fish keepers on the traditional aquarium heaters! Takes up less space, easy to hide, but in full power! Temperature range is 64-93F. 200 Watt for 20 -40 Gallon tanks..
  • SUPER ACCURATE 1℉ – Thanks to the intelligent inverter technology, with the in-built chips the thermostat keeps the fish heater at a constant temperature at an accuracy of 1℉, much more accurate than the traditional knob-controlled fish heaters and you save your electricity expenses by 50%!.
  • DIGITAL DISPLAY WITH DOUBLE TEMP. READINGS – This fish tank heater comes with an external thermostat with digital display that shows 2 readings – the current temperature and the set temperature – very easy to switch by pressing the SET button and you save an extra thermometer for current temperature measuring..
  • 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 l....
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Orlushy 800W Submersible Aquarium Heater with Intelligent LED Temp & Watt Display and External Controller, Frequency Conversion Fish Tank Heater for 55-200 Gallon Tanks (800W for 100-200Gal)

  • ...l work with higher wattage. When the water temperature is close to the set value, it will work with lower wattage. After set temp is reached, low wattage is used to keep the water temperature constant, saving energy as well as letting your fish more comfortable..
  • 【Application】:500W heater is applicable to 60-120 gallon tanks, and the 800W heater can be applicable to 120-180 gallon tanks. It can be used in both freshwater and saltwater fish tanks and aquariums.Temperature is adjustable from 65-93℉ with the external controller. Temperature is accurate to 0.1℉ that constant temp protects fish from getting sick easily..
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Kulife Fumak 100W Adjustable Aquarium Heater Super Short Submersible Fish Tank Heater Fish Heater with LED Digital Display Thermostat, for Tanks 10-20 Gallons

  • ... market! It is only a bit more than HALF of the length of the traditional aquarium heaters! The innovative super short length perfectly solves the headache of the fish keepers on the traditional aquarium heaters! Takes up less space, easy to hide, but in full power! Temperature range is 64-93F. 100 Watt for 10 - 20 Gallon tanks..
  • SUPER ACCURATE 1F – Thanks to the intelligent inverter technology, with the in-built chips the thermostat keeps the fish heater at a constant temperature at an accuracy of 1F much more accurate than the traditional knob-controlled fish heaters and you save your electricity expenses by 50%!.
  • DIGITAL DISPLAY WITH DOUBLE TEMP. READINGS – This fish tank heater comes with an external thermostat with digital display that shows 2 readings – the current temperature and the set temperature – very easy to switch by pressing the SET button and you save an extra thermometer for current temperature measuring..
  • 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 ....
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AIWEK Fish Tank Heater,Aquarium Heater,Adjustable,with 2 Suction Cups Submersible, for 10-30 Gallon Marine Saltwater and Freshwater (100W)

  • Various specifications:immersion heater is suitable for 10 – 30 gallon tank, also suitable for both saltwater and freshwater..
  • Voltage 110-120V:power cord is 6ft, please choose the right wattage aquarium heater according to our size chart..
  • Adjustable: Aquarium Fish Tank Water Heater,Temperatures from 68°F to 93°F (20°C - 34°C), of aquatic climate within a 1-degree difference,Automatic shut off when the temperature is reached..
  • Explosion Proof: 2mm thickened explosion proof glass, 33% thicker than the normal, safer for both human and animals..
  • Fish tank accessories and Warranty: Except for thermometer, also equipped with 2 suction cups , thermometer sticker,and offer 12 months warranty, leave you no worries after you buy it..
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MQ Submersible Aquarium Heater Auto Thermostat 200W Fish Tank Heater with LCD Digital Aquarium Thermometer Shatter-Proof and Blast-Proof

  • 【For Fish Tank 15-40 gallon】200W aquarium heater, voltage AC 110-120V, power cord is 5.0ft, please choose the right wattage aquarium heater....
  • TEMP ADJUSTABLE: Temperature can be adjusted between 68-94℉. You can set the temp to one of these values on the dial: 68, 71, 75, 78, 82, 86, 90, 94....
  • SAFETY PROTECTION: Effectively maintain the tank water in the constant temp you set, stop heating when the water temp is 1.5-2℉ above the set temp....
  • BLAST-PROOF: Made of shock resistant quartz glass, covered with double sealed case, explosion-proof and no electricity leakage, preventing your pets....
  • BUY ONE GET ONE IN FREE: This fish tank heater come with an extra thermometer to show the accurate tank temperature to avoid overheat or freeze. It....
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