Best Saltwater Heater

hygger 300W Aquarium Heater for Fresh-Water Salt-Water with External Digital Display Thermostat Controller and Thermometer Auto Quartz Submersible Heater for Fish Tank 30-60 Gallon

【Quickly Heat Up】Voltage 110-120V/60HZ, power 300W, US three-pin plug, heater rod length 7.7 inch. Fast heating up aquarium heater, it takes about....
【Auto on and off 】Reliable submersible aquarium heater. It will stop heating when the water temp reaches to the set temp, please note that the....
【Fully Submerged】The heater tube and the separate sensitive thermometer must be completely submerged under water all the time. Please unplug it....
【Led Display Controller】Only show Fahrenheit degrees. To set the temp, just press the button over and over until the screen displaying the temp....
【For long Time Use】Very durable and explosion-proof aquarium heater, can be used for saltwater and freshwater aquariums, service life can be 3....

Check Stock

Dreyoo 2 Set Aquarium Fish Tank Heater, 300W Submersible Aquarium Heater with Thermometers and 4 Suckers, Adjustable Knob Aquarium Water Heater Built in Thermostat for 40-55 Gallon Aquariums

... can be easily put into the water, allowing you to better observe the temperature of the fish tank.
Immersion probe only, do not immerse the thermometer in water.
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.

Check Stock

hygger 200W Aquarium Heater with LED Digital Temperature Controller, Submersible Fish Tank Heater for 15-30 Gallon Tank

This fully submersible aquarium heater enables memory function and over heat protection. Auto stop heating when over-heats, resets when it cools down..
Made with premium quartz and double sealed by black protective guard, this fish tank heater is resistant to explosion and corrosion, and protect fish and other livestocks from punching and scalding.
Build-in external IC temp controller, easy to read blue LED digital number shows real time water temperature. Heat indicator lights on red when fish heater start to heat and turns in yellow once it reach set temperature. Temp accuracy is +/- 1°F..
Easy to set temperature without getting hands wet. Temperature can be precisely adjusted from 61 to 90°F (16°C ~ 32°C). Just press set button to desired temperature, it blinks 3 seconds and begins to work.
200 watt aquarium heater, voltage 110-120V, suitable for tank capactiy 15-30 gallon freshwater and saltwater aquariums.

Check Stock

Aquarium Heater Submersible 50W/200W/300W Fish Tank Water Heater Adjustable Temperature Thermostat for 15 30 55 75 Gallon Freshwater Saltwater Fish Betta Tanks with 2 Suction Cups (300W)

✅Upgraded Heater - Our aquarium heater is made of high quality real quartz glass material, will not explode during working, can totally keep your fish safe and health, suit for freshwater and saltwater tank..
✅Circulating Working Mode - Our submersible aquarium heater has a super good feature is after setting your temperature, it will work about 5-10 minutes, then stop 2 minutes, then continue to working, repeat this working mode until get your temperature. This working mode avoid overheating your fish..
✅Adjustable Temperature – The temperature of the water heater can be adjusted, rotate the orange dial can easily set the accurate temperature which you want. Temperature range is 20-34 ℃(68-93 ℉)..
✅Power – The power of the fish thank heater is 300W, which is suit for 50 to 80 gallons fish tank. Voltage is 110V-120V. Cable length is 55 inch..
✅Indicator Light - This 75 gallon aquarium heater thermostat has a indicator light to let you know when the heater is on. It will be red when heating and off when the proper temperature has been reached. It will stop work automatic when water reach the temperature which you set, and begin to work when water temperature bellow setting temperature..

Check Stock

Hitop 50W/100W/300W Adjustable Aquarium Heater, Submersible Glass Water Heater for 5 – 70 Gallon Fish Tank (50W for 5-15 Gallon)

Explosion Proof: The aquarium heater is made of 2mm thickened quartz glass, 33% thicker than ordinary glass, explosion-proof, not easy to crack, which is very safe for people and aquatic animals..
Application: 50W water heater is suitable for 5 – 15 gallon tank, also suitable for both saltwater and freshwater, suitable for fish tanks and turtle tanks, must be completely submerged in water when using..
Accurate Temperature: The fish tank heater can be adjusted from 68°F to 93°F (20°C - 34°C), comes with a thermometer sticker, convenient to detect the water temperature without another pay..
Long Service Life: This fish heater adopts 8-slot multi-branched heating wire ceramic frame, shorter length, 7.8*1*1 in(20*2.5*2.5 cm), better heat dissipation, and can save more space for your fishes..
Complete Accessories and Warranty: This aquarium submersible heater comes with accessories you need, in addition to the thermometer, it comes with 3 suction cups, one for replacement, and offer 12 months warranty, giving you peace of mind after your purchase..

Check Stock

Hitop 50W/100W/300W Adjustable Aquarium Heater, Submersible Glass Water Heater for 5 – 70 Gallon Fish Tank (100W for 10-30 Gallon)

Explosion Proof: The aquarium heater is made of 2mm thickened quartz glass, 33% thicker than ordinary glass, explosion-proof, not easy to crack, which is very safe for people and aquatic animals..
Application: 100W water heater is suitable for 10–30 gallon tank, also suitable for both saltwater and freshwater, suitable for fish tanks and turtle tanks, must be completely submerged in water when using..
Accurate Temperature: The fish tank heater can be adjusted from 68°F to 93°F (20°C - 34°C), comes with a thermometer sticker, convenient to detect the water temperature without another pay..
Long Service Life: This fish heater adopts 8-slot multi-branched heating wire ceramic frame, shorter length, 9.5*1*1 in(24*2.5*2.5 cm), better heat dissipation, and can save more space for your fishes..
Complete Accessories and Warranty: This aquarium submersible heater comes with accessories you need, in addition to the thermometer, it comes with 3 suction cups, one for replacement, and offer 12 months warranty, giving you peace of mind after your purchase..

Check Stock

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)

...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..

Check Stock

Aquarium Heater Submersible 50W/200W/300W Fish Tank Water Heater Adjustable Temperature Thermostat for 15 30 55 75 Gallon Freshwater Saltwater Fish Betta Tanks with 2 Suction Cups (200W)

✅Upgraded Heater - Our aquarium heater is made of high quality real quartz glass material, will not explode during working, can totally keep your fish safe and health, suit for freshwater and saltwater tank..
✅Circulating Working Mode - Our submersible aquarium heater has a super good feature is after setting your temperature, it will work about 5-10 minutes, then stop 2 minutes, then continue to working, repeat this working mode until get your temperature. This working mode avoid overheating your fish..
✅Adjustable Temperature – The temperature of the water heater can be adjusted, rotate the orange dial can easily set the accurate temperature which you want. Temperature range is 20-34 ℃(68-93 ℉)..
✅Power – The power of the fish thank heater is 200 W, which is suit for 40 to 60 gallons fish tank, low energy consumption. Voltage is 110V-120V. Cable length is 55 inch..
✅Indicator Light - This small aquarium heater thermostat has a indicator light to let you know when the heater is on. It will be red when heating and off when the proper temperature has been reached.....

Check Stock

YOFOTHS Aquarium Heater 25W/50W/100W/200W, Small Fish Tank Heater, Temperature Adjustable Mini Tank Heater for 1/5/10/20/30/40 Gallon, External Temperature Controller (50W(3-10Gallon))

【50Watts Small Fish Tank Heater】 This Aquarium Heater is suitable for 5-10 gallons tanks, Mini size can well fit your mini tanks. Voltage 110-120V, power cord length is 52”, Suitable for freshwater and saltwater. Meet the growth temperature for turtle, Fighting fish,Guppy, Goldfish, Neon Tetra, Gourami, Peaceful Betta, Pterophyllum, Dwarf Gourami, Pterophyllum Scalare, Betta Smaragdina, Koi, Corydoras, Anabantoidei, Paradise Fish, Clownfish,swordtail…..
【Precise and Constant Temperature】An intelligent IC chip controls the heater’s temperature. The temperature accuracy is 1℉. The fish heater will automatically start heating when the water temperature is lower than the set values and stop heating when the water temperature reaches the target..
【External Temperature Controller】Adjust the temperature from 64℉ to 93℉, This submersible heater is adjusted by an external controller, which you can mount on the outside edge of the tank. It’s convenient and safe for you to set the temperature, No need to put your hands in the water to adjust the Aquarium Heater temperature..
【Prevent for Over Heating and Out of Water Protection】 The heater will cut off power and stop heating automatically when the fish tank heater is out of water ....

Check Stock