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aquarium heater for 40 gallon tank - 315 items found | Last update: 02 December 2022 - 18:20:57

Tetra HT Submersible Aquarium Heater With Electronic Thermostat

All Tetra HT heaters have red/green indicator lights to let you know when the heater is heating(red) or on standby(green). The low voltage thermostat maintains water at 78°F without any adjustment required. Be sure purchase the correct heater for your tank size. Buying a heater too small for your tank can cause under heating. It is critical to ensure your tank is equipped with a hood or glass canopy to contain the heat inside the aquarium. All Tetra HT Heaters will shut off if an electrical short is detected for your safety.

MQ Titanium Alloy 200W Aquarium Heater for Salt and Fresh Water, Digital LED Display Submersible Heater with External Thermostat Controller, for Fish Tank 25-40Gallon

Feature: 1) FULL Submersible heater, made of shock resistant and shatter proof Titanium Alloy tube for fresh or salt water. 2) Voltage AC 110-120V. Temperature can be adjusted between 20-34℃, 68-93F. You can press the 'SET' key to shift degree unit between Celsius and Fahrenheit 3) On/Off indicator light for at-a-glance monitoring. Safety control protects against running dry 4) The heater will automatically turn off when water level dips too low 5) Aquarium heater with LED digital display, IP68. Control Accuracy: ±3°F 6) The length of cable is 1.5 m/ 5 ft. Includes suction cups Note: For better experience and safety, please carefully read and follow the user manual. Don't bury the heater in sand or mud. Please don't plug in before the heater is well installed. If you want to clean the fish tank or take out the heater, please disconnect power and wait for 30 MINUTES to cool down. Package included: 1* Submersible Aquarium Heater 2* Suction Cups 1* User ManualIf Error code E1 is always showed on the display, the temperature probe on the top of heater may be blocked by small bubbles or excess water. There are two kinds of solutions for your reference. 1. Take out of the heater, shake the top of the rod to remove bubble or excess water in the probe. 2. Reset the heater: (1)...

Rombot Aquarium Heater Fish Tank Heater,Explosion-Proof,Adjustable Temperature Displayer Auto Thermostat 200W

Premium Quartz Material Aquarium Heater. 1, Explosion-Proof:Thick Quartz Glass,Much More Durable,Shatterproof and Shatter Resistant than Conventional Glass Tank Heaters. 2, IP68 Double Impermeable Sealed Technology,Safety Leakage Prevention. 3, Temperature Displayer: Heater Back side Designed Real-Time Temperature Displayer,It Shows Clearly the Aquarium Temperature with Displayer. 4,Auto Thermostat : Auto Thermostat Technology,Needn't to Worry the Temperature Out of Control. 5,Accurate Temperature Control: 68F - 94F Adjustable Temperature. Tank Capacity: ▲ 200w ☛ 20-55 Gallons Tank. ▲ 300w ☛ 30-80 Gallons Tank. We Suggest Choose the Lagrer Power Heater in Winter. ▲ Attention: Please Submerge the Aquarium Heater into Water Before Turning On,Don't Power on Until the Heater is Completely Submerged in the Water. ▲ Important Tips: Please Contact Us Once You Find it Broken During Shipping,Don't Send it Back to Amazon.We'll Resend a New One with Good Condition for You. Package Include: 1 X Aquarium Heater

MarineLand Precision Heater for Saltwater or Freshwater Aquariums

Get precise control of your aquarium temperature with the Precision Submersible Heater. This Heater combines an adjustable temperature dial, a high visibility temperature display and an advanced heating element to keep your aquarium water at the optimal temperature for your freshwater or saltwater fish. The Precision heater also includes a thermal switch which will turn off once it rises above an internal pre-set temperature, and turns back on once it cools down, making your aquarium safer for you and your fish. This 150 watt heater is designed for aquariums up to 40 gallons.

Hygger Submersible Aquarium Heater, Adjustable Fish Tank Heater Compact Reliable Betta Heater, Heat-Resistant Milky Quartz Made, with External Temp Controller, 50W/100W/300W, 7-60 Gallon (100W)

Hygger compact aquarium heater is very safe and durable, milky quartz material made, can resist a high temp of 1800℉, excellent in explosion-proof & shatter-resistant.The service life can be more than 3 years if only using in fresh water.Led indicator light inside the quartz tube.When the tank heater is heating, the indicator light is red. When it stops heating, the light is off.When does the heater stop and restart heating? The aquarium heater is very reliable to maintain the water temp as your set. It will stop heating when the water temp is 1.5-2℉ above the set temp and will restart heating when the temp is 1.5-2℉ below the set temp.Over heat protectionThe aquarium heater will auto shut off once the water temp is over 97℉, a spare circuit in the controller will take work to turn it off in case of fault occurs.How to adjust the temp? Rotate the knob on temp controller to set the desired temp. Temp range is 75-91℉.Size ChartPower & Tank: 50W (7-10gallon)100W (10-30gallon) 300W (30-60gallon)Heater Length: 7.5 inch 8.5 inch 10.6 inch If the room temp is lower than 50℉, please buy a larger wattage heater.Do's and Don't's1. For better experience and aquarium safety, please carefully read and follow the user manual.2. Keep the aquarium heater fully submerged in water.3....

Aqueon Pro Adjustable Heater,150W

The Aqueon Pro Heaters are built with a durable, non-corrosive shell for strength and even heat distribution. They have electronic thermostats for accurate temperature settings and safety. LED power indicator light turns red when unit is heating and green when set at the selected temperature. Can be used for freshwater or saltwater fish tanks. Can be positioned horizontally or vertically (preferred method).

DaToo Aquarium Heater Fish Tank Heater Submersible 200 Watt, 1 Yr Warranty

The Best Aquarium Heater 200W For Your NeedsProduct Features Power: 200W aquarium heater. Fit 45 to 70 gallons tank( fresh water and salt water). Suction pad for ease of placement on any glass surface. Temperature in Fahrenheit ( 65°F to 93°F). Aquarium Heater length 11.1inch.NOTICE:1. Please have a hood or glass canopy for your aquarium tank and keep the water flowing. This will ensure that increase the temperature of the whole aquarium tank rather than somewhere.2. Do not power on until the heater is completely submerged in the water. When you want to take out the heater, please wait 10 minutes after turning off the power until the heater is completely cooled, do not remove it immediately.Why Do I Select 200W DaToo Aquarium Heater?1.Adjustable Temperature, easy to get the temperature you set2.Germany microcrystalline glass and nickel-chromium alloy heating wire, Sturdy And Durable, superior heat transfer and enhanced service life3.BPA-Free Material, this means it is safe not only for your fishes, but for you as well.4.Stepwise heating mode, energy Saving, save electricity fee for you.Select DaToo Products= Own A Private Aquarium Housekeeper.JUST DO IT, Let't Go!!

U-picks Upgraded Aquarium Heater,Fish Tank Heater with Adjustable Temperature and Floating Thermometer for Tank Thermostatic Control 300W

U-picks upgrade aquarium heater will make your tank in a steady and controlled temperature, you can control and adjust the temperature manually, what you have to do is put it in the aquarium and plug it in Features: 1, Come with an extra thermometer to show the accurate tank temperature to avoid overheat or freeze. 2, Easy to set and adjust to the setting temperature with the use of the temperature adjustment knob, offers simple installation. 3, suction cups for attachment to the fish tank. The polarized plug prevents electrical shock 4, Size Suggestion: 300W: Better for tank 30-80 gal 100W: Better for tank less than 25 gal 50W: Better for tank less than 10 gal Tips: 1, the heating rods to be completely immersed in water use. 2, please NOT make it out of water. Not put it in the water if the wire or glass tube damaged, unplug the power supply when cleaning the fish tank or refreshing aquarium water. 3, make sure the heater is completely submerged in the water before turning on and unplugged before remove it out from the water. 4, if the outside temperature is over 94°F (34°C), the aquarium heater will stop working. Package included: 1*Aquarium Heater +1* Digital Thermometer

Aqueon Submersible Aquarium Heater

Aqueon Submersible Aquarium Heaters are made from thermal shatter-resistant quartz glass and designed to absorb impacts, making them extremely durable. A power indicator light turns on when the unit is heating and is equipped with a 6-foot power cord.  UL approved, the heater is also programmed to turn itself off when not properly submersed to avoid overheating and damage. This heater can be positioned at a vertical or horizontal angle and used in freshwater and saltwater aquariums. This 100W is for aquariums up to 40 gallons. Other wattage heaters are also available, 50W, 150W, 200W and 300W.