Aquarium Decoration

Aqueon Heater for aquariums and fish tanks

The Aqueon Pro Submersible Aquarium Heater comes in a range of lengths and wattages for use in any aquarium setup.

No matter what size heater is needed, Aqueon Pro heaters are easy to install and use.

Simply plug in the heater, turn the dial to the desired temperature, and submerge it in the aquarium. They can be placed vertically or laterally to adapt to the particular dimensions of each fish tank.

Fish and other aquatic life will enjoy even temperatures. This heater can be used in freshwater and saltwater aquariums.

Many aquarists agree, there is no better heater for fish tanks and aquariums than the Aqueon Pro heater.

Comparative table of the best heaters for aquariums

If you want to see what else there are on the market for aquarium heaters, take a look at our comparison guide to the best heaters for aquariums and fish tanks.

Main Features of the Aqueon Pro Fish Tank Heater

It is one of the highest rated submersible heaters today, available in 50, 100, 150, 200 and 250 watts.

Model Tank Length
50w 75 liters 21.5cm
100w 150 liters 25cm
150w 210 liters 35.5cm
200W 285 liters 35.5cm
300W 378 liters 39.3cm

The following specifications remained constant across all models:

  • Country of manufacture Italy
  • The power cable has a length of 1.8 meters
  • The temperature range is from 20 to 31°C

Made of thermoplastic, making it virtually indestructible. Being made of thermoplastic means that it will disperse heat from its surface.

The control knob located on the top end makes it very easy to access once it’s in the tank.

It has a clear visual control indicator to know that your aquarium has reached the set temperature.

The electric thermostat will automatically turn off if the heater is not in the water, and will reset itself to work again when it is placed back in the water.

What’s in the Aqueon Pro box?

Inside the Aqueon Pro box you will find:

  • 1 x Aqueon Pro Heater
  • 2x Mounting Clips
  • 2 x Suction Cups
  • an instruction manual


Leg warmers aren’t supposed to be conspicuous. The ideal heater blends in with the bottom of your aquarium so you can enjoy your fish without distractions. So in my opinion an aquarium heater should look simple.

It must be said that the Aqueon Pro perfectly meets this premise. If it weren’t for the LED light, it would hardly be noticeable.

At the top of the Aqueon Pro is the temperature control knob. Simply turn this to adjust the temperature of your aquarium, which ranges from 20 to 31°C.

To hold the heater in place, two mounting clips are included in the box. Attaching the suction cups to the clips takes a bit of effort, but once you get the hang of it, they hold up pretty well.

These clips easily attach to the narrow section of the heater and can be spaced as needed.

Constructed with an aluminum core, Aqueon Pro submersible heaters are built to last. They are perfect for prolonged use.


Thanks to its strong suction cups, the Aqueon Pro can be placed anywhere on the tank, vertically or horizontally.

As long as the heating element portion of the Aqueon Pro is placed under water, there will be no problem. To help with this, there is a minimum water level indicator on the rear of the heater.

The Aqueon Pro turns on instantly the moment you plug it in. Therefore, it must be placed in its position before turning it on. These types of devices heat up quickly.

This aquarium heater has an indicator light that warns when the heater is activated and also when the correct temperature has been reached.

If the tank water temperature is lower than the temperature set on the heater, a red LED light indicates that the Aqueon Pro is heating up.

Once the set temperature is reached, the indicator turns green and remains green as long as the temperature of the water in the aquarium does not drop.

It is simple, but effective. The LED light is clearly visible when looking through the front of your aquarium, allowing you to quickly determine what the Aqueon Pro is doing.

One of the points against this aquarium heater is the dial to adjust the temperature. It is difficult to determine which temperature has been selected. Especially when you want to set a temperature that is not indicated on the dial.

Even with this small flaw, we highly recommend it.


Needless to say, if an aquarium heater isn’t accurate, then it’s as good as useless. We are essentially trusting this device with the lives of our fish.

Aqueon claims that the adjustable heat setting is accurate to ±1°C. So the heater is accurate, as long as the correct temperature is selected.

Conclusions about the Aqueon Pro aquarium heater

It conceals well, precisely and quietly heating the aquarium, everything an aquarium heater should do.

With the Aqueon Pro, you’ll always know if it’s working thanks to the 2-light indicator. Its internal thermostat correctly adjusts the temperature

The temperature control at the top is easy to use, although we already mentioned that it is not the most precise when it comes to marking the selected temperature. But it’s something you put on once and don’t touch again. Also, you should continually check the temperature of your aquarium with a thermometer.

This is a good heater. It has everything you would want in an aquarium heater and then some. If you want to know more, in this link you have the official page.

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