Keeping your aquarium at the right temperature is important. Temperature is a key factor in whether or not your tropical fish, shrimp, or plants live and thrive or struggle and die. Fortunately, you can easily get the right aquarium heater to keep the water in your aquarium cool or warm depending on your needs.
These are the best aquarium heaters for the money in June, 2022. Temperature is a key factor for the health of your fish and other tropicals in your tank and most fish require water temperatures between 68 degrees Fahrenheit and 88 degrees Fahrenheit.
A heat-proof glass bulb is the ideal temperature indicator. It allows you to easily see the temperature in your aquarium at a glance and will be the first to change colors if the temperature in your tank becomes too high or too low.
You should place your aquarium heater close to your filtration unit in order to maintain the temperature of your water properly. Some aquarium heaters also include remote temperature indicators helping you ensure the aquarium water is a safe temperature at all times. All of the heaters on our list include an adjustable temperature controller for accurate settings and help you control the temperature in your tank according to the water required by your tropical fish and/or plants.
| Name | Category | Product |
|---|---|---|
| hygger Saltwater Tank Titanium Tube Submersible Pinpoint Aquarium Heater | Best Overall |  |
| Tetra HT Submersible Aquarium Heater | Budget Pick |  |
| Finnex Digital Heater Controller | Upgrade Pick |  |
1. hygger Saltwater Tank Titanium Tube Submersible Pinpoint Aquarium Heater
Pros:
- Exceptional customer service
- Compact size
- Durable and long-lasting
- Comes at a mid-range price
- Easy to adjust temperature
- It’s highly accurate
- Can be used for a variety of applications
- Can be used both in salt and freshwater
Cons:
- It’s not the most reliable heater
- The warranty is only for 90 days!
If you’re looking for an accurate pinpoint heater with a digital display, then the Hygger Saltwater Tank Titanium might be just what you’re looking for. One of its greatest benefits is its accuracy, which is the result of its built-in high precision sensor.
The digital display also makes it very easy to adjust the temperature. It also comes with a memory function which allows you to save a preferred setting.
2. Tetra HT Submersible Aquarium Heater
Want a heater that will lower your energy and heating costs while keeping your fish alive and happy? Then you’re going to need theTetra HT 240W submersible aquarium heater that offers the features you need most without the features you don’t need.
The Tetra HT 240W submersible heater is a compact 24-watt aquarium heater that can heat up to 25 gallons of water.
The small-sized heater’s compact design makes it the best for smaller aquariums where space is a premium, but the water temperature builds up due to winter weather and fluctuating electricity.
3. hygger Saltwater Tank Titanium Tube Submersible Pinpoint Aquarium Heater
Pros:
- Exceptional customer service
- Compact size
- Durable and long-lasting
- Comes at a mid-range price
- Easy to adjust temperature
- It’s highly accurate
- Can be used for a variety of applications
- Can be used both in salt and freshwater
Cons:
- It’s not the most reliable heater
- The warranty is only for 90 days!
If you’re looking for an accurate pinpoint heater with a digital display, then the Hygger Saltwater Tank Titanium might be just what you’re looking for. One of its greatest benefits is its accuracy, which is the result of its built-in high precision sensor.
The digital display also makes it very easy to adjust the temperature. It also comes with a memory function which allows you to save a preferred setting.
4. FREESEA Aquarium Heater Fish Tank Submersible Heater
Pros:
- Higher wattage means it can heat larger tanks
- LED light changes color according to the temperature of the water in the tank
- Great for small ponds and water gardens too
- Includes a cord to switch it between Celsius and Fahrenheit
- Fast heating
- Accurate temperature gauge
- Safe Heating due to the auto shut down feature, and automatic temperature controller
Cons:
- It doesn’t come with a thermostat
- Not for saltwater tanks
- The thermometer doesn’t have a battery
- The heater isn’t battery operable
If people say that good things come in small packages, then the 50watt aquarium heater proves that by being one of the smallest heaters out there. It’s only 1.4 inches long and 1.1 inches wide and it weighs just 3 ounces.
The elegant design of the heater makes it suitable for both indoor and outdoor applications. It has a color changing LED light that tells you the temperature of the water. Anything from warm to very hot. It’s ideal for tropical plants, and fish from your regular fish tank.
5. SZELAM 25W Smart Mini Aquarium Heater
5, 3.0 and 3.5 Gallon)
Looking for a dependable aquarium heater that you can rely on when you’re away?
Well, look no further than the 25W Smart aquarium heater from SZELAM. It’s shaped just like a leaf – that adds a nice touch of aesthetics to any home or office. It also comes in three colors: black, red/black and red.
6. Orlushy Submersible Aquarium Heater,100W/150W/200W/300W Fish Tahk Heater
Pros:
- The compact size that can fit into both planted and marine aquariums
- It doesn’t require any maintenance since it’s automatic
- The probe is thermocouple and capable of reaching down to 100 feet (29 meters)
- The LED screen display is easy to read
- The on/off switch is located at the top of the probe which is convenient
- The design is flexible and durable
- It’s completely silent
7. Grow Genration Elemental Solutions H2O Titanium Heater
100-220V for Aquarium, Hydroponics, Cooling, Pond and Pondless Water Feature.
With a capacity of 200 watts, this heater is ideal for aquariums with a capacity of 20 gallons and under.
It comes in compact size, which means it will fit in small spaces (like those aquariums with limited space) and ensures that it doesn’t consume a lot of electricity either.
8. Fluval E Electronic Heater
The Fluval E Electronic Heater utilizes its notorious precision, which allows it to heat water with pinpoint accuracy – no more guessing what temperature your water is.
This heater runs on 3.5 watts and is capable of reaching up to 86 degrees.
It comes in a 5.08” x 2.92” x 1.61” design and is perfectly suited for aquariums that have a volume of 5 liters and below.
9. Submersible Heater
Pros:
- Resistant to Rust & Corrosion
- Won’t Overheat & Can’t Break
- Which Makes It The Ideal Aquarium Heater
- Won’t Change The Temperature Of The Water
- Can Be Used For Saltwater Aquariums
Best Overall: Hydrofarm High Performance Submersible Aquarium Heater
There’s an enormous number of submersible aquarium heaters that are available on the market … I’m not even sure we can trust how many there are. The most important thing is to make the right choice, and that’s what we’re here to help you with.
By now, you’re probably aware of the fact that having the right temperature for your aquarium is one of the most important factors in maintaining a healthy Betta fish. The temperature range for a healthy Betta fish is between 76 and 79 degrees – if you’re not sure how to measure, it’s pretty straight forward.
10. Cobalt Aquatics Flat Neo-Therm Heater
Aquatic hobbyists spend a whole lot of money and time to ensure the proper growth and environment for their aquarium plants and fish. To ensure optimal conditions the aquarium temperature needs to be maintained.
A proper temperature is required to stimulate the growth of beneficial bacteria that help keep the water clean. More bacteria, means a cleane