An aquarium heater is an essential piece of equipment for any fish keeper. It allows you to maintain a stable water temperature, which is vital for the health of your fish.
There are many different types and sizes of aquarium heaters available on the market, so it can be tricky to know which one to choose.
In this article, we have reviewed the 5 best aquarium heaters, to help you make an informed decision.
Table of Contents
Best Aquarium Heaters
Preview | Product | Features | Price |
---|---|---|---|
Best Heater for Aquariums
|
Orlushy Submersible Aquarium Heater, 150W | brand
Orlushy |
Buy on Amazon |
Best aquarium heater
|
DaToo 50 Watt Aquarium Heater | brand
DaToo |
Buy on Amazon |
Best aquarium heater
|
Hitop Aquarium Heater | brand
HITOP-Fish |
Buy on Amazon |
Best Heater for Small Aquariums
|
Tetra HT Submersible Aquarium Heater | brand
Tetra |
Buy on Amazon |
Best Heater for Aquariums
|
HITOP Adjustable Aquarium Heater | brand
HITOP |
Buy on Amazon |
Best For Small Aquariums
|
Aqueon Preset Aquarium Heater | brand
Aqueon |
Buy on Amazon |
Best Heater for Aquarium
|
HiTauing Aquarium Heater | brand
HiTauing |
Buy on Amazon |
Best Heater for Aquariums
|
Fluval M50 Submersible Heater | brand
Fluval |
Buy on Amazon |
Best Heater for Your Aquarium
|
Marineland Precision Heater | brand
MarineLand |
Buy on Amazon |
Best Aquarium Heater
|
Hygger Aquarium Heater | brand
hygger |
Buy on Amazon |
1 Orlushy Submersible Aquarium Heater, 150W – Best Heater for Aquariums

PROS
- Made of thickened quartz glass
- Can be used in fresh and salt water
- 1-degree temperature control
- Automatic shut off
CONS
- Not exactly accurate
brand:Orlushy
size:150W
- The Orlushy Submersible Aquarium Heater is a great choice for people that want to have a reliable and easy to use aquarium heater. It is suitable for saltwater and freshwater aquariums and it has an adjustable temperature dial that allows you to set the temperature to your desired level. The Orlushy Submersible Aquarium Heater is made of explosion proof quartz glass and it is very durable. It also comes with a 6ft power cord and a suction cup mount.
2 DaToo 50 Watt Aquarium Heater — Best aquarium heater

PROS
- Explosion-proof
- Comes with a thermometer
- Can be adjusted from 68°F to 93°F
- 8-slot multi-branched heating wire ceramic frame
- 12 months warranty
CONS
- Short cord length
brand:DaToo
size:50Watt
- The Hitop 50W aquarium heater is a submersible glass water heater that is suitable for 5-15 gallon fish tanks. It is made of 2mm thickened quartz glass that is 33% thicker than ordinary glass, making it explosion-proof and difficult to crack. The water heater can be adjusted from 68°F to 93°F (20°C – 34°C) and comes with a thermometer sticker for easy temperature detection. It also has an 8-slot multi-branched heating wire ceramic frame that is shorter in length and better at heat dissipation. This aquarium submersible heater comes with 3 suction cups and a 12 month warranty.
3 Hitop Aquarium Heater – Best aquarium heater

PROS
- Made of 2mm thickened quartz glass
- Explosion-proof
- Suitable for 5 – 15 gallon tank
- Can be adjusted from 68°F to 93°F
- Comes with a thermometer sticker
- 8-slot multi-branched heating wire ceramic frame
- Shorter length
CONS
brand:HITOP-Fish
- The Hitop 50W aquarium heater is a submersible glass water heater that is suitable for 5 – 15 gallon fish tanks. It is made of 2mm thickened quartz glass that is 33% thicker than ordinary glass, making it explosion-proof and safe for people and aquatic animals. The Hitop 50W aquarium heater can be adjusted from 68°F to 93°F (20°C – 34°C) and comes with a thermometer sticker for accurate temperature detection. The Hitop 50W aquarium heater also has a long service life due to its 8-slot multi-branched heating wire ceramic frame, which is shorter in length and has better heat dissipation. Additionally, the Hitop 50W aquarium heater comes with 3 suction cups and a 12 month warranty.
4 Tetra HT Submersible Aquarium Heater – Best Heater for Small Aquariums

PROS
- Safe for both fresh and salt water
- Easy to use temperature knob
- Shatterproof design
CONS
- Only for small tanks
brand:Tetra
size:2-10 Gallon
- The DaToo 50 watt aquarium heater is a great choice for small to medium sized fish tanks. It is fully submersible and can be placed in the water in any position. The heater has an adjustable temperature knob so you can set it to the perfect temperature for your fish. It also has a convenient on/off switch.The DaToo 50 watt aquarium heater is made with shatterproof, corrosion resistant, wear-resistant microcrystalline glass. The heating element is made of nickel-chromium alloy for superior heat transfer and enhanced service life. The DaToo 50 watt aquarium heater is BPA free and energy efficient. It is backed by a one year warranty and 100% money-back satisfaction guarantee.
5 HITOP Adjustable Aquarium Heater — Best Heater for Aquariums

PROS
- -Shatterproof
-Corrosion resistant
-Wear-resistant
-BPA free
-Energy saving
-One year warranty
CONS
- -None found
brand:HITOP
size:50W
- The DaToo 50 watt aquarium heater is a great choice for small fish tanks. It is adjustable so you can find the perfect temperature for your fish and it is made with shatterproof glass. It is also BPA free and energy efficient.
6 Aqueon Preset Aquarium Heater – Best For Small Aquariums

PROS
- Adjustable temperature
- Suitable for fresh and salt water
- Shatterproof and corrosion resistant
- Energy saving
CONS
brand:Aqueon
color:Multicolored
size:100 Watts
- The DaToo 50 watt aquarium heater is a submersible, adjustable temperature fish tank heater. It is made with shatterproof, corrosion resistant, wear-resistant microcrystalline glass and a nickel-chromium alloy heating element. The DaToo aquarium heater has a temperature range of 68 to 93 degrees Fahrenheit and features a stepwise heating mode. It comes with a one year warranty and 100% money-back guarantee.
7 HiTauing Aquarium Heater – Best Heater for Aquarium

PROS
- 2mm thickened quartz glass
- 33% thicker than ordinary glass
- Explosion-proof
- Can be adjusted from 68°F to 93°F
- Comes with a thermometer sticker
- 8-slot multi-branched heating wire ceramic frame
- Shorter length
- 7.8*1*1 in(20*2.5*2.5 cm)
- Better heat dissipation
- Comes with 3 suction cups
- 12 months warranty
CONS
brand:HiTauing
size:300w
- The Hitop aquarium heater is made of thickened quartz glass and is explosion-proof. It is also 33% thicker than ordinary glass, making it very safe for people and aquatic animals.
- The 50W water heater is suitable for 5 – 15 gallon tanks and can be used for both saltwater and freshwater tanks. It is also suitable for fish tanks and turtle tanks.
- The fish tank heater can be adjusted from 68°F to 93°F (20°C – 34°C) and comes with a thermometer sticker for easy temperature detection.
- The fish heater adopts an 8-slot multi-branched heating wire ceramic frame which is shorter in length and better at heat dissipation. It also comes with 3 suction cups and a 12 month warranty.
8 Fluval M50 Submersible Heater — Best Heater for Aquariums

PROS
- 50 watt aquarium heater
- Submersible
- Adjustable temperature
- Energy saving
CONS
brand:Fluval
size:M50
- The DaToo 50W aquarium heater is a submersible fish tank heater that is adjustable and can be used in both fresh and salt water. The DaToo aquarium heater is made with shatterproof, corrosion resistant, wear-resistant microcrystalline glass and a nickel-chromium alloy heating element that is encased in plastic. The DaToo aquarium heater is a stepwise heating mode heater that will automatically turn on and off to keep your set temperature, reduce electricity consumption. The DaToo aquarium heater is BPA free and has a one year warranty.
9 Marineland Precision Heater — Best Heater for Your Aquarium

PROS
- 50 watt aquarium heater
- Adjustable temperature
- Sturdy and durable
- BPA free and energy saving
- One year warranty
CONS
- Must be completely submerged in water to work
- Some customers have received defective products
brand:MarineLand
size:300-watt
- The DaToo Aquarium Heater is a great way to keep your fish tank at a comfortable temperature. The heater is submersible and can be placed in the water. It is also adjustable so you can get the temperature you want. The heating element is made of nickel-chromium alloy and is corrosion resistant. The DaToo Aquarium Heater is also BPA free and energy efficient.
10 Hygger Aquarium Heater – Best Aquarium Heater

PROS
- Safe for fresh and salt water
- Adjustable temperature
- Energy saving
- One year warranty
CONS
- Only for 5 to 15 gallon tanks
brand:hygger
color:black
size:500W for 65-135 Gallon
- The DaToo 50 watt aquarium heater is a submersible heater that is adjustable and can be used in both fresh and salt water. It is made with shatterproof, corrosion resistant, wear-resistant microcrystalline glass and the heating part is made of nickel-chromium alloy. The DaToo aquarium heater is BPA free and has a stepwise heating mode that will automatically turn on and off to keep your set temperature. It comes with a one year warranty and 100% money back guarantee.
aquarium heater Buying Guide
Heater Buying Guide: How to Choose the Perfect Aquarium Heater
Aquarium heaters are a necessary piece of equipment for all aquariums, regardless of the size. Heaters keep the water at a consistent temperature, which is necessary for fish and other aquatic creatures to thrive.
When choosing an aquarium heater, there are a few factors to consider. The first is the size of your aquarium. Heaters are available in a variety of sizes, so make sure you choose one that is compatible with your tank.
Another factor to consider is the type of heater. There are two main types of aquarium heaters: submersible and external. Submersible heaters are placed in the tank and submerged in the water, while external heaters attach to the side of the aquarium. Each type has its own benefits and drawbacks, so decide which is best for your needs.
The next thing to consider is wattage. Most heaters come in a range of wattages, so choose one that is suitable for your tank size. Be careful not to choose a heater that is too powerful, as it could damage your tank and its inhabitants.
Finally, consider price and brand name when selecting an aquarium heater. There are a variety of affordable heaters on the market, so find one that fits your budget. And remember to choose a reputable brand name for quality products and peace of mind.
With these factors in mind, you can confidently select the perfect aquarium heater for your needs.
Aquarium Heater Buying Guide: How to Choose the Right Size Heater
Aquarium heaters are an essential piece of equipment for keeping your fish alive and healthy. Not all heaters are created equal, so it is important to know how to choose the right size heater for your aquarium.
The first thing to consider when choosing a heater is the size of your aquarium. The wattage of the heater should be equal to or greater than the total wattage of all the lighting in your aquarium. Heaters are usually available in 25, 50, 100, and 200-watt sizes.
Next, you need to decide what type of heater you want. There are three main types of aquarium heaters: submersible, external, and wireless.
Submersible heaters are placed in the water and heat it directly. External heaters are mounted on the outside of the aquarium and use a fan to blow air over a heating element, which then warms the water inside the aquarium. Wireless heaters attach to a thermostat that sits outside of the aquarium and relay information back to the heater to keep it at a set temperature.
Finally, you need to decide on a price range. Aquarium heaters range in price from around $10 to $200.
Once you have determined these factors, you can use the following guide to choose the right size heater for your aquarium:
25-watt heater: up to 2 gallons
50-watt heater: up to 5 gallons100-watt heater: up to 10 gallons200-watt heater: up to 20 gallons
Aquarium Heater Buying Guide: How to Save Money and Get the Best Deal
When you are in the market for an aquarium heater, there are a few things to consider.
The wattage required is an important factor to consider when purchasing an aquarium heater. The size of your aquarium will also play a role in what wattage heater you need. Heaters come in a range of sizes, so finding the right one is essential.
Another thing to consider is the price. Heaters can range in price from around $10 to over $100. It is important to find a heater that fits your budget, but don’t sacrifice quality for a lower price tag. There are some great heaters available for a reasonable price.
If you already have an aquarium, it is a good idea to measure it before heading out to buy a new heater. This will ensure that you get the right sized one for your tank. Heaters are available in a variety of sizes, but not all heaters will fit every tank.
Once you have determined the size of your aquarium and the wattage you need, it is time to start shopping! Here are some tips on how to get the best deal on an aquarium heater:
- Compare prices online. There are many websites that sell aquarium heaters, so it is easy to compare prices and find the best deal.
- Check sale pages online and in stores. Heaters often go on sale, so it is worth checking various sources for the best deal.
- Ask friends and family if they know of any good deals on aquarium heaters. They may have seen or heard about a sale at their local pet store or online retailer.
- Sign up for email alerts from online retailers or subscribe to their RSS feeds so you can be notified when they have specials on heaters or other aquarium supplies . This can save money on items such as filters, lights and pumps too!
Frequently Asked Questions(FAQ)
What size heater do I need for my aquarium?
If you’ve noticed that your aquarium heater has stopped working, it’s important to try to diagnose the issue as soon as possible. This will help you to determine if the heater needs to be replaced, or if there is another issue that needs to be addressed.
There are a few common reasons why aquarium heaters may stop working. One possibility is that the heater is not getting enough power. If the cord leading to the heater is not plugged into an outlet securely, or if there’s something blocking the cord from reaching the outlet, this can prevent the heater from working properly.
Another potential issue is that the water inside of the aquarium may be too cold for the heater to function properly. In this case, you may need to adjust the temperature settings on the heater, or find a way to heat up the water more effectively.
If neither of these issues seem to be responsible for why your aquarium heater isn’t working, then it may be time to replace the unit altogether. When shopping for a new aquarium heater, be sure to read reviews and compare different models so that you can find one that will suit your needs.
What is the best way to position a heater in an aquarium?
When you are considering what size heater to purchase for your aquarium, there are a few things to take into account.
The wattage of the heater is important – you need to make sure it is powerful enough to heat the water in your tank. But don’t just go by the wattage rating alone – also consider the size of your tank. A small fish tank will not need a very powerful heater, while a large tank will require a more powerful heater.
Also consider the climate where you live. If you live in a cold climate, you will need a stronger heater to keep your aquarium water at a comfortable temperature. If you live in a warm climate, you may not need as strong a heater.
Finally, consider the type of aquarium filter you have. Some filters create more warmth than others, so if you have one of these filters you may not need as powerful a heater as someone who doesn’t have a filter.
So, what size heater do you need for your aquarium? It really depends on all these factors – so it’s best to consult with an expert or do some research online before making your decision.
What should I do if my heater is not heating up my tank water to the correct temperature?
When it comes to heating an aquarium, there are a few key factors to consider. The most important is the size of the aquarium, as this will determine how much heat is needed to maintain a comfortable temperature. Heaters are available in many different sizes, so choosing the right one is important.
Another factor to consider is the positioning of the heater. Ideally, it should be located in the centre of the aquarium and not too close to the sides or bottom. This will help ensure even distribution of heat throughout the tank. If possible, try to avoid placing the heater directly under any objects such as filters ornaments or plants, as this can obstruct airflow and decrease its efficiency.
Heaters should also be kept out of reach of pets and children, as they can be dangerous if swallowed. Make sure you always read the manufacturer’s instructions carefully before using a heater, and never use an extension cord with one.
Choosing and positioning a heater is an important part of setting up an aquarium, so take your time and make sure you get it right. By following these tips, you can create a safe and comfortable environment for your fish.
Can I use an extension cord with my aquarium heater?
If your heater is not heating up the water to the correct temperature, there are a few things you can do. One option is to check the temperature of the water with a thermometer to see if it is in the correct range. Another option is to try cleaning the heater. If that does not work, you may need to replace the heater.
Why did my aquarium heater stop working?
aquarium heaters are designed to be used with a specific voltage and amperage. using an extension cord with an aquarium heater can potentially damage the heater and the extension cord.
most extension cords are not rated for the high amperage needed by aquarium heaters. using an extension cord with an aquarium heater can increase the risk of a fire.
if you need to use an extension cord with your aquarium heater, be sure to use one that is rated for the same voltage and amperage as the heater.