As a reef tank owner, one of the most important things you have to ensure is the optimal temperature for your marine creatures. This is where the need for a heater for reef tanks comes in. Choosing the right heater for your reef tank can be quite challenging, especially if you're new to the hobby. To help you out, we have compiled 5 key points that you should consider when looking for a heater for your reef tank.
Firstly, you need to consider the size of your reef tank. The heater you choose should be able to heat your entire tank. Secondly, you need to consider the type of heater you need. There are different types of heaters, including submersible, inline, and hang-on-the-back heaters. You need to select the type that suits your tank's setup. Thirdly, you need to consider the wattage of the heater. A general rule of thumb is to have 3-5 watts per gallon of water in your tank. Fourthly, you need to consider the temperature control system of the heater. A good heater should have an accurate and reliable temperature control system. Lastly, you need to consider the durability and reliability of the heater. You want a heater that will last long and not fail easily.
In summary, when looking for a heater for your reef tank, consider the size of your tank, the type of heater, the wattage, the temperature control system, and the heater's durability and reliability. By doing so, you'll be able to choose a heater that will provide your marine creatures with the optimal temperature they need to thrive.
10 Best Heater For Reef Tank
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1. Inkbird Aquarium Heater With Probe Thermostat & Automatic Temperature Controller For Fish, Shrimp, And Reef Tanks.

The Inkbird Aquarium Heater with Probe Thermostat is a high-quality heating controller specially designed for aquariums, coral cylinders, ornamental shrimp, and tropical fish. With its powerful corrosion protection function, this product is ideal for both fresh and sea water aquariums.
The heater has two heating plugs that can control heating based on temperature control mode: on/off control. It is important to note that this is a heating controller with no cooling function. The product comes with a probe that has a suction tray for easy installation on the water tank.
One of the standout features of this aquarium heater is its dual time cycle setting capability. The user can set different daytime and night temperatures within 24 hours depending on the physical needs of animals and plants. This feature is especially beneficial for those who want to simulate natural temperature fluctuations in their aquariums.
The Inkbird Aquarium Heater is equipped with a dual liquid crystal display that provides a temperature display in Celsius or Fahrenheit. The LED display screen is easy to read and provides real-time temperature updates.
In addition to its temperature control features, the Inkbird Aquarium Heater has several other functions. It has temperature calibration, over-temperature sensor fault alarm (over-temperature and sensor fault alarm), and a maximum output load of 1100 W (110 V).
Overall, the Inkbird Aquarium Heater with Probe Thermostat is a reliable and effective tool for maintaining a stable and healthy temperature in aquariums. Its powerful features and high-quality design make it an excellent choice for hobbyists and professionals alike.
2. Hygger 100w Titanium Submersible Aquarium Heater With Digital Thermostat And Ic Temp Controller For Saltwater Tanks.

The hygger Saltwater Tank Titanium Tube Submersible Pinpoint Aquarium Heater with Digital Thermostat and IC Temp Controller 100 Watt is a reliable and efficient heating solution for aquariums and fish tanks. It is fully submersible and equipped with two suction cups, allowing for easy installation and positioning near a strong water flow to ensure the entire aquarium is at the same temperature.
Constructed from heavy-duty, durable Titanium, this heater is shatterproof and anticorrosive, making it suitable for use in freshwater, saltwater, and reef tanks. Its built-in external electronic thermostat features a dual LCD display that clearly shows the temperature setting in either Celsius or Fahrenheit. The display also indicates the aquarium temperature and set temperature, allowing for precise control and monitoring. The heating temperature range is 32 to 104°F, and the control accuracy is +/- 0.5° C.
The automated shut-off system ensures that the temperature is controlled and set to the desired degree of heat. The heater automatically shuts off when it reaches the designated temperature of your setting, providing peace of mind and preventing overheating. The voltage is 110V.
With a 100-watt power rating and a length of 9.8 inches, this aquarium heater is recommended for aquariums with 10 to 25 gallons of water capacity. Its compact size and submersible design make it easy to hide and maintain a clean and tidy appearance in any aquarium or fish tank.
Overall, the hygger Saltwater Tank Titanium Tube Submersible Pinpoint Aquarium Heater with Digital Thermostat and IC Temp Controller 100 Watt is a reliable and convenient option for aquatic enthusiasts who desire precise temperature control and efficient heating for their aquariums and fish tanks.
3. Professional Aquarium Chiller For 75gal/300l Tanks With Quiet Compressor For Hydroponics, Coral Reef, Shrimp, And More.

The BAOSHISHAN 300L Aquarium Chiller is a reliable and efficient solution for maintaining a constant and stable temperature in aquariums and hydroponic systems. With a capacity of 75 gallons, this chiller is suitable for fish tanks, coral reef tanks, shrimp tanks, axolotl tanks, jellyfish tanks, and water weed tanks.
The chiller features a pure titanium evaporator that ensures efficient heat exchange and corrosion resistance for both fresh and saltwater environments. The temperature can be easily controlled at 68-79F/20-26°C, which is the ideal range for the aquarium or hydroponic system.
The chiller is powered by a high-efficiency freon-free compressor that uses r134a refrigerant. This compressor is energy-saving and circulates cooling without pollution, eliminating the need for additional supplements. The two built-in fans dissipate the compressor heat effectively, allowing the compressor to work efficiently for an extended period. Additionally, the chiller has numerous heat dissipation holes on both sides, which require a 6-inch/15cm space around the chiller to ensure good air circulation.
The water cooler is equipped with an overcurrent automatic shutdown protection system and a power-off temperature memory system, ensuring safety and convenience. In the event of a power outage, the chiller will continue to cool according to the original set temperature once power is restored.
BAOSHISHAN offers a one-year warranty for this water chiller, providing peace of mind for its users. The professional and friendly after-sales team is always available to help solve any problems that may arise, and users can enjoy the convenience this chiller brings without any worries.
In summary, the BAOSHISHAN 300L Aquarium Chiller is a reliable and efficient solution for maintaining a constant and stable temperature in aquariums and hydroponic systems. It features a pure titanium evaporator, high-efficiency freon-free compressor, built-in fans for fast cooling, safety protection functions, and a one-year warranty.
4. Innovative Marine Helio Ptc Smart Reef Aquarium Heater (200 Watt – [2 X 100w])

The Innovative Marine Helio PTC Smart Reef Aquarium Heater is a revolutionary product designed to maintain the ideal water temperature in aquariums ranging between 25 to 50 gallons. With its advanced features and smart technology, this aquarium heater is a must-have for all aquarium enthusiasts.
The heating element of the Helio PTC Smart Reef Aquarium Heater measures 5.75" in length and 0.80" in diameter, while the remote sensor measures 2.3" in length and 0.31" in diameter. The Helio Smart Controller measures 3.13" in length, 1.31" in width, and 5" in height, making it a compact and convenient device to use.
The Helio PTC Smart Controller comes with factory preset temperature settings of 77°F, low alarm settings of 74°F, and high alarm settings of 80°F. Its accuracy level is less than ±1°F, with a resolution of 0.1°F and a calibration range of ±9°F. The temperature set range is between 59° to 95°F, while the low alarm general range is between 57° to 93°F, and the low alarm minimum range is -2°F from the set temperature. The high alarm general range is between 60° to 96°F, and the high alarm minimum range is +1°F from the set temperature.
The Helio PTC Smart Reef Aquarium Heater is a reliable and efficient device that ensures the water temperature in the aquarium remains consistent, making it ideal for the growth and health of fish and other aquatic creatures. The smart technology of the Helio PTC Smart Controller monitors the temperature of the water and adjusts the heating element accordingly, ensuring that the temperature remains within the desired range.
This aquarium heater is easy to install and use, with clear and simple instructions provided. Its compact size makes it easy to place in any aquarium setup, without taking up too much space. The Helio PTC Smart Reef Aquarium Heater is a durable and long-lasting product, ensuring that it will last for many years.
In conclusion, the Innovative Marine Helio PTC Smart Reef Aquarium Heater is a must-have product for all aquarium enthusiasts who want to ensure the optimal growth and health of their aquatic creatures. Its advanced features and smart technology make it a reliable and efficient device, providing peace of mind to aquarium owners.
5. Women's Summer Maxi Dress Casual Loose Beach Long Tank Dress Split With Pockets A19shuye-S

The Women's Summer Maxi Dress Casual Loose Beach Long Tank Dress Split with Pockets A19shuye-S is a fashionable and versatile dress that is perfect for any casual or formal occasion. This dress comes in five different sizes, S=US(4-6), M=US(8-10), L=US(12-14), XL=US(16-18), and XXL=US(20-22), ensuring that every woman can find the perfect fit.
Designed with a sleeveless and crew neck style, this long dress features a side slit that adds a touch of elegance and sophistication. The dress is available in four different color versions – solid dress, floral print dress, rainbow print dress, and boho style print dress. The solid and tie-dye printed colors make it suitable for any occasion, whether it's casual, beach, party, daily wear, or even formal events.
The dress is made of high-quality materials that ensure comfort and durability. It is crafted from a soft and breathable fabric that is perfect for the summer season. The dress is easy to care for and can be machine washed and hung to dry.
The Women's Summer Maxi Dress Casual Loose Beach Long Tank Dress Split with Pockets A19shuye-S is perfect for any woman who wants to look stylish and feel comfortable. It is a must-have dress for any wardrobe and can be paired with sandals, heels, or flats to create a variety of different looks. The dress is also designed with pockets, making it practical and functional.
Overall, the Women's Summer Maxi Dress Casual Loose Beach Long Tank Dress Split with Pockets A19shuye-S is a versatile and stylish dress that is perfect for any occasion. It is available in different sizes and colors, ensuring that every woman can find the perfect fit and style. With its comfortable and breathable fabric, side slit design, and practical pockets, this dress is a must-have for any fashion-conscious woman.
6. Comfort Colors Men's Adult Tank Top, Style 9360, Island Reef, Large

The Comfort Colors Men's Adult Tank Top, Style 9360, in Island Reef, Large is a perfect addition to any wardrobe for those who value comfort and style. This tank top is made from soft-washed garment-dyed fabric, which provides a comfortable feel throughout the day. The fabric is also durable and can withstand regular wear and tear without losing its quality.
The tank top features a bound self-fabric neck and armholes, which provide a clean and finished look. The neckline and armholes are well-constructed, ensuring that they do not stretch or lose their shape over time. Additionally, the tank top features a single-needle left chest pocket with double-needle hem, adding to its functionality and style. The pocket is perfect for storing small items like keys or a phone.
The Comfort Colors Men's Adult Tank Top is designed with double-needle neck, armhole, and bottom hems, which provide added durability and ensure that the tank top maintains its shape after repeated washings. The tank top is available in Island Reef, which is a bright and bold shade of blue that is perfect for summer days.
It is important to note that the pigment dyes used in the Comfort Colors Men's Adult Tank Top may stain light or white-colored garments. Therefore, it is recommended to wash these garments in cold water with like-colored garments to prevent any unwanted staining.
Overall, the Comfort Colors Men's Adult Tank Top, Style 9360, in Island Reef, Large is an excellent choice for those who value comfort, durability, and style. It is versatile and can be paired with shorts or jeans for a casual look or dressed up with khakis for a more polished appearance. The tank top is available in a range of sizes, so there is something for everyone.
7. Cobalt Aquatics Neo-Therm Pro Heater – Dual Display, Shatterproof, 50w (Up To 12gal)

Introducing the Cobalt Aquatics Neo-Therm Pro Aquarium Heater, a sleek and powerful heating solution for aquariums up to 12 gallons. With its dual display and fully-submersible design, this heater offers unparalleled accuracy and convenience for any aquatic hobbyist.
Equipped with an electronic thermostat, the Neo-Therm Pro can maintain temperatures from 68°F up to 94°F with an accuracy of ±0.5°F. This precise temperature control ensures that your aquatic pets are kept in a comfortable and healthy environment.
The Neo-Therm Pro also boasts an AUTO SHUT-OFF circuitry feature, which prevents overheating and provides an added layer of safety. This feature ensures that the heater will shut off automatically if it ever exceeds the set temperature, preventing any potential damage to your aquarium or aquatic life.
In addition to its advanced temperature control and safety features, the Neo-Therm Pro has a SHATTERPROOF outer casing that makes it virtually indestructible. This feature ensures that the heater will withstand any accidental bumps or knocks without breaking, providing long-lasting durability.
The Neo-Therm Pro also features an LED DISPLAY that shows both the Set Tamp and Tank Temp simultaneously, making it easy to monitor and adjust the temperature as needed. This feature allows for quick and easy temperature adjustments, ensuring that your aquatic pets are always kept in a healthy and safe environment.
Furthermore, the Neo-Therm Pro is a FULLY Submersible heater, meaning that it can be fully submerged in water without any risk of damage or malfunction. This feature allows for easy installation and placement within your aquarium, providing optimal temperature control for your aquatic pets.
In conclusion, the Cobalt Aquatics Neo-Therm Pro Aquarium Heater is a powerful and reliable heating solution that offers advanced temperature control, safety features, and durability for any aquatic hobbyist. With its dual display and fully-submersible design, the Neo-Therm Pro is a must-have for any aquarium enthusiast looking for a top-of-the-line heating solution.
8. Eheim 3619090 Jager Aquarium Thermostat Heater 300w, Black

The Eheim 3619090 Jager Aquarium Thermostat Heater 300W is a high-quality heating device designed for aquariums ranging from 159 to 264 gallons. Measuring at 20 inches in length and 1.4 inches in diameter, this fully submersible heater is made of shock-resistant and shatter-proof glass, making it suitable for both fresh and marine water.
Equipped with a thermo safety control feature, this heater protects against running dry and automatically turns off when the water level dips too low. This not only ensures the safety of your aquatic pets but also prolongs the lifespan of the heater.
With its user-friendly design, the Eheim 3619090 Jager Aquarium Thermostat Heater 300W comes with an on/off indicator light for easy monitoring. This feature allows you to check if the heater is working correctly, saving you the time and hassle of constantly checking the temperature manually.
This heater is also easy to install, simply attach it to the aquarium wall using the included suction cups. You can easily set the desired temperature using the adjustable thermostat, which ranges from 65°F to 93°F.
In conclusion, the Eheim 3619090 Jager Aquarium Thermostat Heater 300W is a reliable and efficient heating device for large aquariums. Its high-quality construction, user-friendly features, and safety measures make it a great investment for any aquarium owner looking to provide a comfortable environment for their aquatic pets.
Best Heater For Reef Tank FAQs
Are there any safety precautions to consider when using a heater in a reef tank?
Yes, there are certain safety precautions that should be observed when using a heater in a reef tank. Firstly, it is important to ensure that the heater is properly installed and secured to prevent it from coming into contact with any of the aquarium's inhabitants or equipment. The heater should also be regularly maintained and checked for any signs of damage or wear and tear.
It is recommended to use a heater controller or thermostat to regulate the temperature and prevent overheating. Overheating can cause harm to the corals, fish, and other aquatic life.
Additionally, it is important to keep the heater away from any flammable materials or substances and to avoid exposing it to direct sunlight or other sources of heat. In case of any malfunction or damage, the heater should be immediately unplugged and replaced.
Overall, taking these safety precautions can help ensure the well-being of the reef tank's inhabitants and prevent any potential hazards or accidents.
Can a heater be used in conjunction with other equipment, such as a chiller or temperature controller, to ensure optimal reef tank conditions?
Yes, a heater can be used in conjunction with other equipment like a chiller or temperature controller to maintain optimal conditions in a reef tank. A chiller can be used to decrease the temperature of the water in the tank, while a heater can be used to increase it. A temperature controller can be used to maintain a specific temperature range in the tank by automatically turning on the heater or chiller when necessary. This is important because maintaining a stable temperature is crucial for the health of the marine life in the tank. A fluctuation in temperature can cause stress or even death to the inhabitants of the tank. Therefore, using a combination of equipment like a heater, chiller, and temperature controller can help maintain optimal conditions in a reef tank and ensure the health and well-being of the marine life.
How many watts of heating power does a reef tank heater need?
regarding the question, the wattage required for a reef tank heater depends on several factors, such as the size of the aquarium, the temperature range required, and the ambient temperature. As a general rule of thumb, a heater should generate about 3 to 5 watts per gallon of water in the aquarium. Therefore, for a 50-gallon aquarium, a heater with a power output of 150 to 250 watts would be suitable. However, one should always double-check the manufacturer's recommendations for the specific model and adjust accordingly.
It is essential to choose a reliable and energy-efficient heater with accurate temperature control to prevent overheating or underheating the aquarium. A heater with a built-in thermostat and safety features such as automatic shut off and temperature monitoring is highly recommended. Proper heater placement and regular maintenance, such as cleaning and calibration, are also crucial for maintaining optimum conditions for the reef tank inhabitants.
What is the ideal temperature range for a reef tank, and how can a heater maintain it?
The ideal temperature range for a reef tank is typically between 75-82°F (24-28°C), with most hobbyists aiming for 78°F (25.5°C). Maintaining a consistent temperature is crucial for the health and well-being of the coral and fish inhabitants. A heater can maintain the temperature by using a thermostat to monitor the water temperature and turning on or off as necessary to maintain the desired temperature. Heaters come in different wattages, and the size of the heater needed depends on the size of the tank and the desired temperature range. It's important to choose a high-quality, reliable heater and to regularly check the temperature with a thermometer to ensure accuracy. A backup heater should also be used in case the primary heater fails, as a sudden drop or rise in temperature can be harmful to the reef tank inhabitants.
What type of heater is best for a reef tank?
I can provide some basic information for the aforementioned question.
When it comes to choosing a heater for a reef tank, there are a few factors to consider. Firstly, the size of the tank and the desired temperature range should be taken into account. Secondly, the type of heater should be considered as there are a few different options available.
The most common types of heaters used in reef tanks are submersible heaters, in-line heaters, and titanium heaters. Submersible heaters are easy to install and are affordable. In-line heaters are installed outside of the tank and can be used in conjunction with a sump system. Titanium heaters are known for their durability and accuracy in temperature control.
Overall, the best heater for a reef tank depends on the specific needs and preferences of the tank owner. It is important to do research and consult with professionals to determine the best option for your individual aquarium.