Best Aquarium Heater Reviews 2019 – Top 10 Fish Tank Heaters!

Need the best aquarium heater 2019?

I have seen a lot of aquarium owners often complains that their fishes don’t live up to their life expectancy, pity. But if you had bought the best aquarium filter and the best aquarium heater, your fishes may have lived longer. An Aquarium heater is one of the most essential accessories for your fish tank.

But choosing the best aquarium heater is pretty tough! Since there are a lot of choices available in the market and countless aquarium heater brands to choose from. So how to choose the best aquarium heater brand in 2019?

On top of that question, there are several varieties of aquarium heaters which you should choose depending upon the fish breeds you have in your fish tank.

In this aquarium heater review, I have shortlisted top 10 best-rated aquarium heaters 2019 for your consideration, with which your search for the best fish tank heater becomes short. All of which are the safest and very reliable ones!

10 Best Aquarium Heaters 2019 – Comparison

Aquarium FiltersWattsWarrantyPrice
1. FLUVAL E 300 watt Advanced Electronic Heater300 W5 Years
2. Cobalt Aquatics Neo-Therm Aquarium Heater100 W3 Years
3. Aqueon Pro Adjustable Heater, 100W100 WLifetime
4. EHEIM Jager Aquarium Thermostat Heater125 W3 Years
5. Hydor Submersible Glass Aquarium Heater25 W2 Years
6. Hydor In-Line External Heater - Original ETH200 W2 Years
7. HyggeR Adjustable Submersible Aquarium Heater100 W1 Year
8. Aqueon Submersible Aquarim Heater100 WLifetime
9. ViaAqua 50-Watt Quartz Glass Submersible Heater50 W1 Year
10. Marina Betta Submersible Heater for Aquarium80 WNA

Best Aquarium Heater 2019 Reviews

1. FLUVAL E 300 watt Advanced Electronic Heater

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Fluval E is an electronic aquarium heater with 300watt power, it has the capacity to heat up aquarium tanks with up to 100 gallons of water.

It has to be fixed with a rear or side glass adapter, it has sensors to observe the tank’s water temperature precisely, you should give it up to 20mins before plugging it to the electrical circuit.

Vuetech technology provides you the indication of any temperature changes beyond +/- 5.5°F. So that you can keep your fish tank from any potential risks due to temperature changes.

This safest aquarium heater protects itself from any shocks from large fish breeds and also prevents any fishes comes in direct contact with its integrated fish guard.

The mounting bracket of this compact aquarium heater allows you to adjust or remove the aquarium heater without removing the heater bracket.

This submersible aquarium heater comes with Digital-micro-processor and dual temperature sensor to offer you the accurate stats about the fish tank’s temperature real-time.

The processor and sensors of this aquarium heater are made with reliable materials which last and perform better than its competitors. This aquarium heater is also covered with 5yrs warranty.

  • Dual temperature sensors provide accurate and real-time water temperatures
  • Check out user manual under Product details before using the item.
  • Equipped with a slim profile mounting bracket; Colored display alert system
  • Fast heat technology built with a safety shut-off; Integrated fish guard to protect fish and invertebrates
  • LCD temperature display available in both Fahrenheit and Celsius; Range of 68 to 93 degrees Fahrenheit
  • Suitable for aquariums up to 100 gallons;300 watts; 5-year warranty
  • The heater is factory calibrated. Variables such as lower room temperature, wide fluctuations, lack of an aquarium cover, the presence of submersible pumps and filters, aquarium placement in proximity to cooling sources, may require a higher wattage for proper control.
  • Accurate Temperature stats
  • Durable and quality construction
  • 5 Years Warranty
  • Alert light glow is not so bright
  • The mounting bracket is not sturdy

This is the top rated aquarium heater 2019 in terms of quality and accuracy! The price range is on the higher side, still, the unit is the best aquarium heater which offers dependable performance along with quality.

2. Cobalt Aquatics Neo-Therm Aquarium Heater

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Cobalt Aquatics presents the Neo-Therm Aquarium heater with simple and convenient design, this 100w aquarium heater is made precisely to achieve the best results.

Unlike many aquarium heaters which come in cylindrical shape, this one is made flat and thin, it’s thickness is about ¾ inches, it has a button on top of it, you can set the desired temperature level using this button.

The heating element of this fish tank heater is covered with the hard plastic case, hence it is completely shatterproof and adds safety to the environment.

The temperature indicators of this aquarium heater allow you to be informed about the temperature levels at all the times, it has two lights one is steady glowing and other one keeps blinking.

The steady green light shows the set temperature and the blinking light let you know the current temperature level inside the fish tank. When it blinks fast, it means the temperature level in the fish tank is higher than the set temperature, if it blinks slowly then the set temperature is lower than the set temperature. This aquarium heater is covered with a 3 years warranty.

  • Steady, accurate temperature control
  • Quality European construction
  • Shatterproof
  • Super flat – 1/3″ thick
  • 3-year warranty
  • The thin and flat design is compact
  • Shatterproof
  • Quality construction
  • Price is not reasonable
  • The set temperature is not sustained

This is one of the best aquarium heaters for small fish tanks which needs minimal heating, also it lasts longer than many of its competitors. If you’re looking for the best aquarium heater with decent performance and quality construction, then this is a good choice for you.

3. Aqueon Pro Adjustable Heater, 100W

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Aqueon Pro Adjustable aquarium heater is a fine product which can take care of the water heating for your fish tank, made attractive with high-grade plastic and heating element. Since the exterior of this adjustable aquarium heater is sturdy, it can withstand abuse from harsh fishes.

Many people who own a glass aquarium heater used to buy new fish tank heaters once in a while because their harsh fishes can break it often, but when you own Aqueon Pro you don’t have to purchase another fish tank heater till it stops working on its own.

This Aquarium heater utilizes electronic thermostats which provide accurate stats and capable to be controlled in +/- 1° fractions. It shuts off automatically when runs dry, and also restarts itself when it submerged again.

This fish tank heater allows you to adjust the heat settings from 68°F to 88°F, this aquarium heater has indicators which let you know when it is heating, a red light glows when it is heating and green light glows when not heating. This fish tank heater also has a limited lifetime warranty which increases the confidence to buy.

  • Adjustable heat setting 68 to 88°F, Electronic Thermostat accurate to +/- 1°
  • Fully submersible; Auto Shut-Off when over-heats, resets when it cools down
  • LED light is always on: red when heating, green when not heating
  • Shatterproof and nearly indestructible
  • Limited Lifetime warranty
  • Simple design and sturdy exterior
  • Accurate thermostat
  • Lifetime warranty
  • Not suitable for large tanks

This aquarium heater is not for large tanks, one of a best fish tank heater for small to medium sized tanks. If you’re looking for a mid-range aquarium heater with reliable performance and quality construction, then this is a good choice for you.

4. EHEIM Jager Aquarium Thermostat Heater

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EHEIM Jager is a precise thermostat heater for aquarium designed and created to perfection, the performance is pretty accurate and dependable.

This fully submersible aquarium heater has a thermal safety control, which accurately monitors the function and switches off automatically when the water level runs too low.

Suitable for freshwater and saltwater aquarium, the Trutemp dial re-calibrates the heater to maintain a constant temperature, it allows you to adjust the temperature settings between 65° to 93°.

The total length of this thermostat heater for the aquarium is around 9 inches, which is longer than most of the 50watt aquarium heaters.

This 50w thermostat heater for aquarium has a dial that can be easily seen through the wall, this 50-watt aquarium heater is made of glass and is made shatterproof.

Though there are many other aquarium heaters is made with aluminum and thick materials, this glass made aquarium heater offers improved longevity and flawless performance, however you cannot rely on this aquarium heater for larger tanks.

  • Features a shatterproof glass construction
  • Includes mounting bracket and suction cups
  • On/off indicator light verifies heater functions
  • Simple and safe recalibration (±2 °C)
  • Thermo safety control enables ‘running dry’ protection
  • TruTemp dial adjusts from 65° to 93° F
  • Generous 5.6-foot cord
  • Shatterproof Design
  • Consistent performance
  • Fairly priced
  • Not suitable for large tanks
  • Re-calibration often inaccurate and needs to be done twice

This is the best 50w aquarium heater made of glass and the shatterproof design adds to safety. It is also capable of providing long-lasting performance. The price is also reasonable, considering all these facts, it is one of the best aquarium heaters in the market 2019.

5. Hydor Submersible Glass Aquarium Heater

best submersible aquarium heater

Hydor is a Submersible heater for an aquarium which is made of high-grade glass, mounted by the suction cup. This is a 25W aquarium heater, also available in 50W, 100W, 150W, and 200W in various wattages.

High resistance shatterproof design of this submersible aquarium heater is one of the earliest debut, widely rated as one of the best submersible aquarium heaters among customers for its simple and durable design and construction.

Though the glass normally is fragile, this aquarium heater is constructed to provide best performance and longevity.

This small aquarium heater is capable of maintaining the set temperature constantly. By design, this submersible aquarium heater is shock resistant and also will not get damaged even in-case if it runs dry.

Overall construction is made using high-quality materials, though this is primarily made for smaller capacity aquariums, it scores on its consistent performance and long-lasting durability. This submersible aquarium heater is also covered with a 2years manufacturer warranty.

  • High resistance – the first shatterproof heater
  • Graduated scale for precise maintenance of set temperature
  • Position vertical, horizontal and completely submerged
  • Shock resistant
  • No damage in case of running dry
  • Durable and long-lasting performance
  • Shatterproof and shock resistant
  • Fairly priced
  • Not suitable for larger tanks

You can rely on this submersible aquarium heater’s performance especially when you’re living in extreme weather condition, hot or cold, this 25w aquarium heater is suitable for small aquariums with less gallon capacity.

6. Hydor In-Line External Heater – Original ETH

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Another dependable product from Hydor in our list, In-line External aquarium heater is a powerful electronic product to heat up your medium-sized aquarium tanks consistently for a long term.

The overall quality is outstanding, made with high-grade materials to withstand heavy duty usage for longer hours constantly. This is a 200w aquarium heater which has a powerful heating element that is capable of handling marine and tropical aquariums.

Unlike submersible aquarium heaters, Hydor In-line is an external heater which can be used with a canister filter or directly with the aquarium tank, but the most effective thing to do is using this with a canister filter.

When you connect this aquarium heater with a canister filter, the water gets filtered and also the temperature gets regulated. The precision made temperature setting dial allows you to set the desired heat level, a red led light glows to indicate you when the heater is on.

The advantage of using this 200w aquarium heater is that it helps you maintain the desired temperature inside your aquarium and also reduces the hardware kept inside the fish tank.

  • Suitable for marine and tropical aquariums
  • 5/8 inch hose
  • High precision electronic temperature control
  • For external use
  • Easy to use
  • An external aquarium heater is stealth and reduces the hardware inside the fish tank
  • Durable and long-lasting construction
  • Suitable for most type of aquarium canister filters
  • Not suitable for extremely cold locations
  • Price is slightly high

Using a submersible aquarium heater can be a secondary choice for people who want less equipment inside the fish tank. This is one of the best aquarium heaters for people looking for an effective option which can be kept outside the aquarium tank.

7. HyggeR Adjustable Submersible Aquarium Heater

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Hygger Adjustable Submersible aquarium heater has a trendy outlook, black exterior which is made with high-grade materials and the heating element is pretty strong for a dependable performance.

This shatterproof heater for an aquarium is more durable than many glass aquarium heaters, the protective sleeve also ensures that it is kept untouchable by any of the habitats.

Safety was the primary thing which the manufacturer focused while designing this submersed aquarium heater, this is made with quartz glass material which is an anti-explosion, it also has a protective plastic sheathing which is again heat resistant.

The heat can be set up between 68°F to 93°F, this aquarium heater shuts off automatically when not in contact with water, so you can be rest assured that it won’t get damaged is it runs dry.

This submersible aquarium heater also comes with a manual which includes the temperature chart which you can use to find the right temperature for any kind of fish. On top of all these features, it comes with a 12 months warranty to gain more confidence.

  • 5inch length for 100W version, Safety Protection: It will automatically turn off as the heater take out from the water.
  • Explosion-proof, Shatterproof Design: High-quality Quartz Glass material and its Protective Sleeve, an aquarium heater is shatter resistant & more durable than conventional glass heaters.
  • Great for both Fresh Water and Marine Water aquariums, aquaculture, terrariums & hydroponic systems
  • LED Digital Display: Digital LED water temperature display, no need thermometer anymore.
  • Outside and Inside Temperature Control: The heater has two adjustable switches, Can be free to control the temperature.
  • Safe and effective design
  • Durable and high-quality construction
  • Lon lasting performance
  • Not suitable for tanks with more than 70gallons capacity
  • Price is moderately high

This is one of the best aquarium heaters which is capable of 65°f to 93°f temperature setting and can maintain the same consistently. If you’re looking for the best aquarium heater with great performance and safety, this is an ideal choice for you.

8. Aqueon Submersible Aquarium Heater

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Aqueon’s next submersible aquarium heater in our list is capable of handling fish tanks with up to 40gallon water capacity.

Temperature setting ranges from 68°F to 88°F which is more than sufficient for small size fish tanks. The construction is made shatterproof!

Nowadays most of the aquarium heaters are being made shatterproof and that became a basic quality to be one of the best aquarium heaters, Aqueon didn’t miss it.

This fully submersible aquarium heater is made from thermal shatter-resistant quartz glass material which absorbs impacts and is extremely durable to withstand heavy duty use for a long run.

The submersible aquarium heater has a power indicator which gets turn on when the heater is running. Also, it is programmed to shut off automatically when not in contact with water and upon overheating. So you get the complete peace of mind with this fully submersible aquarium heater. The whole unit is made with high-grade materials and comes with a lifetime warranty.

  • LED light turns on when aquarium water is being heated; Automatic safety shut off and overheat protection
  • Precise temperature setting to 1-degree F (68-88 degrees F)
  • Recommended for aquariums up to 40-Gallons
  • Shatter-resistant construction, fully submersible
  • Lifetime Limited Warranty
  • Perfect for medium-sized and small fish tanks
  • Shatter-resistant and overheat resistant
  • Lifetime warranty
  • Not suitable for large tank capacity

This 100w aquarium heater is made perfectly with high-grade materials, the price point is truly an attraction given to the quality delivered. The long-lasting performance makes this one of the best submersible aquarium heaters out there.

9. ViaAqua 50-Watt Quartz Glass Submersible Heater

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ViaAqua 50W submersible aquarium heater is made with high-grade quartz glass to be shatterproof and withstand harsh ambiance for a long term.

Very simple to use and install, even a novice can install this aquarium heater without looking at the user manual, all the parts are made with quality materials to attain consistent performance and longevity.

The heating element is made with ceramic which dispenses the heat evenly throughout the heating element so that it can heat a lot of water at the same time with the flow. There is an indicator light which glows when the submersible aquarium heater is switched on.

This 50W submersible aquarium heater has an automatic shutoff feature which is really helpful and proved to be one of the most important features to protect the submersible aquarium heater from getting damaged when running dry if the aquarium heater is not in touch with the water, it gets shut off automatically. Along with all these said features, it also comes with a 12 months manufacturer warranty.

  • High-quality quartz glass
  • For use in fresh or saltwater aquariums
  • Fully-submersible
  • Visible temperature setting
  • Simple design makes it easy to install
  • The ceramic heating element is pretty effective
  • Cheap price point
  • Suction cup and thermometer not included in the package
  • Less warranty period

The price point is at the lower range, this is one of the best aquarium heaters in terms of price range and the quality construction. You can rely on this submersible aquarium heater for the long run.

10. Marina Betta Submersible Heater for Aquarium

what is the best aquarium heater

Marine Betta is a submersible aquarium heater which is the cheapest in our list of best-rated aquarium heaters.

This smallest aquarium heater is made primarily for Marine Betta, it has no adjustable temperature settings, it is designed to reach and maintain the preset temperature which is ideal for Marine betta, with the suction cups it can be mounted on the glass walls firmly.

This aquarium heater for small fish tanks is suitable for fish tanks with capacity up to 1.5gallons of water. Made with a high-grade polymer which is sturdy and durable than many glass aquarium heaters.

Installing this aquarium heater for small fish tanks is very easy, doesn’t require an instruction manual, just by looking at it you can figure out how it works and how to mount it. The suction cup is included in the package itself, need not be bought separately.

Though it is very simple to install and easy, it doesn’t have variable temperature settings, which may be a setback for people living in locations with extreme weather conditions.

  • Automatically reaches set temperature
  • Creates ideal conditions for bettas to live in
  • Eight watts
  • Made of durable polymer, tougher than glass
  • Submersible heater for aquariums up to 1.5 gallons
  • Easy to install and use
  • Quality and sturdy construction
  • Cheapest priced aquarium heater
  • No adjustable temperature settings
  • Not suitable for extreme weather conditions

This is one of the best small aquarium heater in 2019, which is capable of providing optimal living ambiance for your marine bettas. If you’re looking for a cheapest and capable aquarium heater for smallest of the tanks, this is an ideal choice.

Best Aquarium Heater 2019 – Buying Guide

Fish tanks can replenish the positive vibrancy around where it is placed, buying a freshwater aquarium is easier than maintaining it.

Accessories that you buy for your fish tank should give your fishes a healthy living environment that includes clean and fresh water plus ideal warmness.

Types of Aquarium Heaters

Fully submersible aquarium heaters are widely used and popular among fish tank owners, it is basically a heating element covered with a protective material which prevents shocks and heats up water to meet the temperature settings.

They are among the top-rated aquarium fish tanks and got a lot of best ratings among users for its simplified design and easy to install setup. These type of aquarium heaters can provide set temperature constantly even in extremely cold weather but may get damaged if runs dry.

External Aquarium heaters do the same thing what a submersible aquarium heater does, but unlike the earlier one, this unit is installed outside the fish tank.

This can be directly connected to the fish tank, but most common and effective way of using an external aquarium heater is connecting it with a canister filter, by doing so you can get the water filtered and temperature can be regulated at the same time. Since it is outside the fish tank, it may not be ideal for people residing in locations with extreme weather conditions.

What is the best aquarium heater in 2019?

Choosing the best aquarium heater in 2019 is really difficult. It depends on the type of fish tank and fishes you own, there are differently sized aquarium heaters available with different wattage capacity.

If you’re a beginner, I strongly suggest you go for the cheapest one with relative capacity, by using your first aquarium heater you’ll be able to understand more about fish tank heaters practically, then you’ll be able to figure out which one could be the most suitable aquarium heater among the best-rated fish tank heaters in the market.

Consider the tank size and water type before choosing the best fish tank heater, because often you may choose too much or too low capacity which may do well or complete irrelevant device for your fish tank respectively.

Also, there are few best aquarium heater review sites which offer you the much-needed information about all type of fish tank heaters and it’s specifications, also look for best-rated fish tank heaters 2019 to choose among.

Hope the review about best aquarium heater 2019 is useful in choosing the top rated and cheap fish tank heaters for your home.

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