Are you looking for the 75 gallon aquarium heater? Do you know what to consider before buying one? Well, we’ve managed to put together a list of the best 75 gallon aquarium heater for your consideration. You can choose one and use it according to your needs.

In most cases, customers lack knowledge about market conditions, which leads to poor purchasing decisions. Fortunately, you have come to the right place as we will present you with a complete guide on how to select the 75 gallon aquarium heater for you. We have searched for hours and spent a lot of time and effort making sure you get a good return on your hard-earned money.

You can find a quick comparison and a list of the top 75 gallon aquarium heater below if you’re short on time.

Our Premium Picks!

EDITOR’S CHOICE
9.7
Orlushy Submersible Aquarium Heater,300W Adjustable Fish Tahk Heater with 2 Suction Cups Free Thermometer Suitable for Marine Saltwater and Freshwater

Orlushy Submersible Aquarium Heater,300W Adjustable Fish Tahk Heater with 2 Suction Cups Free Thermometer Suitable for Marine Saltwater and Freshwater

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9.5
Marineland Precision Heater for Saltwater or Freshwater Aquariums

Marineland Precision Heater for Saltwater or Freshwater Aquariums

PREMIUM CHOICE
9.3
Aqueon Submersible Aquarium Fish Tank Heater For Up To 75 Gallon Aquariums, 200 Watts

Aqueon Submersible Aquarium Fish Tank Heater For Up To 75 Gallon Aquariums, 200 Watts

Best 75 gallon aquarium heater

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EDITOR’S CHOICE

Orlushy Submersible Aquarium Heater,300W Adjustable Fish Tahk Heater with 2 Suction Cups Free Thermometer Suitable for Marine Saltwater and Freshwater

Orlushy Submersible Aquarium Heater,300W Adjustable Fish Tahk Heater with 2 Suction Cups Free Thermometer Suitable for Marine Saltwater and Freshwater
9.8
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Marineland Precision Heater for Saltwater or Freshwater Aquariums

Marineland Precision Heater for Saltwater or Freshwater Aquariums
9.4
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PREMIUM CHOICE

Aqueon Submersible Aquarium Fish Tank Heater For Up To 75 Gallon Aquariums, 200 Watts

Aqueon Submersible Aquarium Fish Tank Heater For Up To 75 Gallon Aquariums, 200 Watts
9.3
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BAOSHISHAN 300L Aquarium Chiller 75gal 1/3 HP Fish Tank Chiller Special Quiet Design Refrigeration Compressor for hydroponics Water Weeds Axolotl Jellyfish Coral Reef Tank Shrimp (75gal/300L) BAOSHISHAN 300L Aquarium Chiller 75gal 1/3 HP Fish Tank Chiller Special Quiet Design Refrigeration Compressor for hydroponics Water Weeds Axolotl Jellyfish Coral Reef Tank Shrimp (75gal/300L)
8.8
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HITOP 300W 500W Digital Aquarium Heater,Large Fish Tank Heater with LED Display and External Controller, for 75 Gallon Fish Tank HITOP 300W 500W Digital Aquarium Heater,Large Fish Tank Heater with LED Display and External Controller, for 75 Gallon Fish Tank
8.3
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GMsound Aquarium Heater Submersible Fish Tank Water Heater Thermostat (200W for 25-75Gal) HITOP 300W 500W Digital Aquarium Heater,Large Fish Tank Heater with LED Display and External Controller, for 75 Gallon Fish Tank
8.1
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AQQA Aquarium Heater 500W for 66-135 Gallon Submersible Fish Tank Heater 75 Gallon Betta Fish Heater Aquarium Thermostat Heater for Coral Marine & Freshwater Aquarium (500W, 66-135Gal) AQQA Aquarium Heater 500W for 66-135 Gallon Submersible Fish Tank Heater 75 Gallon Betta Fish Heater Aquarium Thermostat Heater for Coral Marine & Freshwater Aquarium (500W, 66-135Gal)
7.8
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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) 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)
7.3
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ZEETOON 300 Watt Aquarium Heater Safe Submersible Fish Tank Heater Titanium Warmer with 2 Artificial Plant 1 Stick-on Thermometer LED Digital Thermostat Controller for Salt or Fresh Water 40-75 Gallon ZEETOON 300 Watt Aquarium Heater Safe Submersible Fish Tank Heater Titanium Warmer with 2 Artificial Plant 1 Stick-on Thermometer LED Digital Thermostat Controller for Salt or Fresh Water 40-75 Gallon
7.1
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Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774 Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774
6.4
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Orlushy Submersible Aquarium Heater,300W Adjustable Fish Tahk Heater with 2 Suction Cups Free Thermometer Suitable for Marine Saltwater and Freshwater

EDITOR’S CHOICE

Specifications:

Orlushy Submersible Aquarium Heater,300W Adjustable Fish Tahk Heater with 2 Suction Cups Free Thermometer Suitable for Marine Saltwater and Freshwater

$28.99
$25.99
 in stock
Amazon.com
as of July 8, 2022 5:04 am

Features

  • ★300W aquarium heater is suitable for 40 to 55 gallons aquariums,Length - 11 inch,voltage 110-120V, power cord is 6ft, please choose the right wattage aquarium heater according to our size chart.
  • ★It shows an area to adjust the temperature. It's not exactly accurate but it turns easy and can be adjusted at small intervals.
  • ★Explosion Proof: 2mm thickened quartz glass,can be used in fresh water and salt water aquariums,easy to hide in the tank.
  • ★Precise temperature dial from 68 to 89°F allows for complete control of aquatic climate within a 1-degree difference.
  • ★Adjustable Aquarium Fish Tank Water Heater Sensitive and reliable thermostat maintains uniform temperature. Automatic shut off when the temperature is reached

Marineland Precision Heater for Saltwater or Freshwater Aquariums

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Specifications:

Marineland Precision Heater for Saltwater or Freshwater Aquariums

$27.50  in stock
4 new from $27.50
6 used from $22.70
Free shipping
Amazon.com
as of July 8, 2022 5:04 am

Features

  • This 300 watt heater is for aquariums up to 80 gallons. Adjustable temperature dial allows you to set the temperature 1 degree with every click.
  • Thermal Switch automatically turns off as temperature rises above an internal preset and turns back on once it cools down.
  • The advanced heating element contains a mica core surrounded by a mesh heating element for superior heat transfer with enhanced durability
  • Advanced mounting bracket securely attaches to glass and provides 3 window positions to view the temperature display
  • Easy to view sliding scale tells the exact temperature setting. Top dial view shows the setting from an additional location.

Aqueon Submersible Aquarium Fish Tank Heater For Up To 75 Gallon Aquariums, 200 Watts

PREMIUM CHOICE

Specifications:

Aqueon Submersible Aquarium Fish Tank Heater For Up To 75 Gallon Aquariums, 200 Watts

$22.97  in stock
8 new from $21.97
5 used from $13.40
Free shipping
Amazon.com
as of July 8, 2022 5:04 am

Features

  • Fully submersible, auto shut-off when overheats, resets when cools down
  • Electronic thermostat stops heating once set temperature is reached
  • Precise temperature setting adjustable to 1° F (68-88° F)
  • Shatter-resistant
  • LED light turns on when aquarium water is being heated, automatic safety shut off and overheat protection

BAOSHISHAN 300L Aquarium Chiller 75gal 1/3 HP Fish Tank Chiller Special Quiet Design Refrigeration Compressor for hydroponics Water Weeds Axolotl Jellyfish Coral Reef Tank Shrimp (75gal/300L)

Specifications:

BAOSHISHAN 300L Aquarium Chiller 75gal 1/3 HP Fish Tank Chiller Special Quiet Design Refrigeration Compressor for hydroponics Water Weeds Axolotl Jellyfish Coral Reef Tank Shrimp (75gal/300L)

$525.50  in stock
Amazon.com
as of July 8, 2022 5:04 am

Features

  • [Constant Stable Temperature]--Pure titanium evaporator achieves the most efficient heat exchanging, corrosion resistant, for both fresh and salt water. The temperature of the AL-300L chiller can be well controlled at 68-79F/20-26°C, the ideal temperature range for your aquarium or hydroponics system.
  • [High-efficiency Freon Free Compressor]--This 75gal aquarium chiller adopts a energy-saving refrigeration compressor, using r134a refrigerant, circulating cooling without pollution and do not need to be supplemented.
  • [Built-in Fan for Fast Cooling]--The two built-in fans can dissipate compressor heat well, so that the compressor can work efficiently for a long time. In addition, there are a large number of heat dissipation holes on both sides of the chiller, so there must be a space of 6 inch/15cm around the chiller to ensure good air circulation.
  • [Safety Protection Function ]--The water cooler is equipped with an overcurrent automatic shutdown protection system and a power-off temperature memory system. After powering off and restarting, the chiller will continue to cool according to the original set temperature.
  • [One Year Warranty]--BAOSHISHAN take the responsibility of one year warranty for this water chiller, please don’t worry, professional and friendly after-sales team will help you solve any problem, and you only need to enjoy the convenience it brings.

HITOP 300W 500W Digital Aquarium Heater,Large Fish Tank Heater with LED Display and External Controller, for 75 Gallon Fish Tank

Specifications:

HITOP 300W 500W Digital Aquarium Heater,Large Fish Tank Heater with LED Display and External Controller, for 75 Gallon Fish Tank

$29.89  in stock
Amazon.com
as of July 8, 2022 5:04 am

Features

  • HITOP 300W digital aquarium heater, 10.6*2.8*1.2 inches, suitable for 40~80gallon fish tank. Adopt Ni-cr Alloy heating element, characterized by high resistivity, corrosion resistance and temperature stable, which is top grade heating element for heaters. More reliable and have a longer service life. Caution: Because it is a high-power heater, it must be completely immersed in water for use!!! So that it will never melt.
  • Dual LED Digital Temperature Display, Easy to Read. This fish tank heater not only display the set temperature, also display the real-time water temperature, convenient to observing the change of the water temperature. In addition, adopting an internal high-efficiency temperature sensor, more accurate to detect the water temperature.
  • With an external temperature adjustment device, more convenient and safer to adjust the set temperature (60~93℉). And the Heating part of this tank heart is separated from electric parts, make the temperature controlling more accurate, error within ±2℉.
  • Press the external button to set the desired temperature, the heater will automatically heat up, and the heater will display the real-time water temperature at the same time. When the water temperature reaches the set temperature, the tank heater will automatically stop heating.
  • This fish heater has a removable protective cover for easy cleaning. Comes with 3 suctions cups and 1 sticker thermometer, and we provide 12 months warranty for this heater.

GMsound Aquarium Heater Submersible Fish Tank Water Heater Thermostat (200W for 25-75Gal)

Specifications:

GMsound Aquarium Heater Submersible Fish Tank Water Heater Thermostat (200W for 25-75Gal)

$13.99  in stock
Amazon.com
as of July 8, 2022 5:04 am

Features

  • Fully Submersible. Power: 200W. Suggested water volume: 20-75 gal.
  • Adjustable Temperature: The temperature of the fish tank heater can be adjusted automatically. Temperature setting range: 65° F - 93° F(20°C~34°C), and the display is easy to read.
  • High Quality: Aquarium heater made of high quality quartz glass, double seal material , advanced design, ensures safe operation.Fully suiting for fresh or saltwater aquariums, provide a constant warm environment for your tropical fish to stay healthy.
  • Set desired aquarium temperature & on/off indicator light confirms operation. *On/off indicator light allows simple, visual confirmation of heater operation.
  • Convenient and Safe: Our aquarium heater thermostat has two suction cups for attachment to the fish tank. The polarized plug prevents electrical shock.

AQQA Aquarium Heater 500W for 66-135 Gallon Submersible Fish Tank Heater 75 Gallon Betta Fish Heater Aquarium Thermostat Heater for Coral Marine & Freshwater Aquarium (500W, 66-135Gal)

Specifications:

AQQA Aquarium Heater 500W for 66-135 Gallon Submersible Fish Tank Heater 75 Gallon Betta Fish Heater Aquarium Thermostat Heater for Coral Marine & Freshwater Aquarium (500W, 66-135Gal)

$64.99  in stock
Amazon.com
as of July 8, 2022 5:04 am

Features

  • 【High Quality Material】The shell of AQQA aquarium heater is made of PC plastic, much more heat-resistant than ABS material, can resist up to 180℃; The heating rod is made of explosion-proof and insulated quartz glass; Double sealing and waterproof, preventing leakage of water and electricity. Much safer for human and your lovely fishes.
  • 【Intelligent Temp Control Range 61-90 ℉】AQQA aquarium heater adopts nickel-chromium heating wire, features fast heating, high precision of temp control. The heater will power off automatically when reaching the set temp and will start heating again when the water temp is 1℉ lower than the set temp. Alway provide a safe and comfortable living environment for your fishes.
  • 【Easy Installation and Temp Setting】You can install it at any angle by 2 powerful suction cups, just make sure it is under water fully. You can set temp with an external temp controller, press the button for 3 seconds to switch beween ℉ and ℃,and every press to adjust 1 ℉ /℃. Easily adjust the temp without hands getting wet. (Note: the controller is not waterproof)
  • 【Heater Protection System】 With anti-dry heating and overheating protection, when the heater is not fully immerged into water, the aquarium heater will stop heating and alert, controller display "E1"; When the water temperature exceeds 95℉/35℃, the heater will stop heating and alert, controller display "HH". Protecting your fish from over-heat scalding.
  • 【Warm Notification】Please note that the aquarium heater must be fully submerged in the water but don't bury it into sand or mud. Please put the heater near the water flowing area to prevent uneven heating and unplug the power supply when cleaning the fish tank or aquarium water changes. Any problems, please feel free to contact us.

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)

Specifications:

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)

$17.99  in stock
Amazon.com
as of July 8, 2022 5:04 am

Features

  • ✅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.

ZEETOON 300 Watt Aquarium Heater Safe Submersible Fish Tank Heater Titanium Warmer with 2 Artificial Plant 1 Stick-on Thermometer LED Digital Thermostat Controller for Salt or Fresh Water 40-75 Gallon

Specifications:

ZEETOON 300 Watt Aquarium Heater Safe Submersible Fish Tank Heater Titanium Warmer with 2 Artificial Plant 1 Stick-on Thermometer LED Digital Thermostat Controller for Salt or Fresh Water 40-75 Gallon

$25.68  in stock
1 used from $16.09
Free shipping
Amazon.com
as of July 8, 2022 5:04 am

Features

  • 300W Stable Output Power: Fully submersible digital thermostat fish heater. Specific Especially suitable for aquariums of medium to large glass materials up to 80 gallons / 250 liters, not suggested plastic tank. ZEETOON Intelligent Temperature regulate Heater provide a constant warm for your pet fish to stay healthy to prevent the fish sick. And We Also Recommend To Position It Near A Strong Water Flow, So That The Whole Aquarium Are In The Same Temperature
  • Accurate Thermostat: Adopted intelligent circuit board, with a precise sensing probe and thermostat heating system. The temperature of the heater can be manually adjust the temperature you need between 20-34℃/±1℃ (68ºF-93ºF/±2ºF) . It works will automatically turn on/off to achieve the stably temperature setting, You can also change the Fahrenheit/Celsius display according to your reading habits. Just press and hold the “SET” button for 6s. Energy-saving life, you will be at your fingertips
  • Safety: The External Adjustable Control, Our fish tank heaters can quickly to adjust the temperature without getting your hands wet. Prevent electric shock & burns. Keep you & your family safe. It has a powerful Security System that Automatically Stop Heating When The Heater is Out Of Water & would automatically shut off when fault occurs or overheating to avoid pets in high temperature. Giving your fish, amphibians, turtles safety protection. Please make sure the heater is Fully Submersible
  • High Quality: ZEETOON High Power Aquarium Warmer Made of high quality titanium alloy, Corrosion-proof Suitable for Freshwater and Seawater, IP68 waterproof, anti explosion & cracking, it is scald-preventing for your pets and safe operation for you, safer and more stable to use. We provide 1 year quality assurance for this product, we will provide replacement items for any product problems within 1 year after your purchase it
  • High Quality: ZEETOON High Power Aquarium Warmer Made of high quality titanium alloy, Corrosion-proof Suitable for Freshwater and Seawater, IP68 waterproof, anti explosion & cracking, it is scald-preventing for your pets, safer and more stable to use. Powerful suction cup, firmly fixed in the tank, do not worry about the heater will be drop & power off. We provide 1 year quality assurance for this product, provide replacement items for any product problems within 1 year after your purchase it

Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774

Specifications:

Fluval E300 Advanced Electronic Heater, 300-Watt Heater for Aquariums up to 100 Gal., A774

$67.99
$55.60
 in stock
9 new from $55.60
7 used from $48.53
Free shipping
Amazon.com
as of July 8, 2022 5:04 am

Features

  • Aquarium heater with dual temperature sensors provide accurate and real-time water temperatures
  • LCD temperature display available in both Fahrenheit and Celsius; with a range of 68 to 93 degrees Fahrenheit
  • Fast heat technology built with a safety shut-off and integrated fish guard to protect fish and invertebrates
  • Equipped with a slim profile mounting bracket and colored display alert system