What Is A 50 Watt Aquarium Heater?

This is a device that heats aquarium water up to the optimal level. Most heaters work automatically eliminating the need to warm water manually. The vast majority of models are divided into two kinds:

  • Submersible heaters hang freely in and above the water (display might stay above water level).
  • Suction cup models are attached to the inner aquarium walls.

Compare The Best 50 Watt Aquarium Heaters

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Fluval M Submersible Heater 50 Watt review
Fluval M Submersible Heater 50 Watt
  •  Aquarium capacity: Up to 15 gallons
  • Temperature range: 66 to 86 °F
  • Automatic shut off: Yes
  • Type of installation: Suction cup

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FREESEA 50 Watt Aquarium Fish Tank Heater with LED Temperature Display review
FREESEA 50 Watt Aquarium Fish Tank Heater with LED Temperature Display
  •  Aquarium capacity: Up to 10 gallons
  • Temperature range: 59 to 94°F
  • Automatic shut off: Yes
  • Type of installation: Submersible

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Eheim Jager Aquarium Thermostat Heater 50 Watt review
Eheim Jager Aquarium Thermostat Heater 50 Watt
  •  Aquarium capacity: Up to 16 gallons
  • Temperature range: 65 to 93° F
  • Automatic shut off: Yes
  • Type of installation: Suction cup

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Hydor Submersible Glass Aquarium Heater 50 watt – Original Theo review
Hydor Submersible Glass Aquarium Heater 50 watt – Original Theo
  •  Aquarium capacity: Up to 14 gallons
  • Temperature range: 67 to 91 °F
  • Automatic shut off: Yes
  • Type of installation: Suction cup

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Top-5 50-Watt Aquarium Heater Reviews

Using these reviews you’ll be able to select the most suitable variant for your aquarium.

Aqueon Preset Heater 50 Watt

Aqueon Preset Heater 50 Watt

Review

Due to the fact that it has preset temperature within 78°F (+/- 1°), Aqueon Preset Heater doesn’t require manual adjusting. Made of high-quality plastic, it’s resistant to damage. As soon as the water is heated, the device shuts off automatically, and while it’s working, LED light is on.

Our opinion

Simple, non-expensive, efficient – a perfect choice for small aquariums with tropical fish.

PROS

  • Cheap;
  • No manual adjustment is required.

CONS

  • No temperature adjustment.
Fluval M Submersible Heater 50 Watt

Fluval M Submersible Heater 50 Watt

Review

Matching the aquarium design well, this heater is made of Borosilicate glass & ceramics. The device is compact and slim, so it won’t deprive fish of space. Suitable for aquariums up to 15 gallons, it has 66-86 °F range. Feel free to use in both fresh and saltwater tanks.

Our opinion:

That’s a great choice for any type of water and any kind of fish, but it’s a bit overpriced.

PROS

  • Works with 240 V;
  • Heats up to 15 gals;
  • High-quality materials & sleek design.

CONS

  • Relatively expensive.
FREESEA 50Watt Aquarium Fish Tank Heater with LED Temperature Display

FREESEA 50Watt Aquarium Fish Tank Heater with LED Temperature Display

Review

Easy in installation and efficient, this submersible heater has the heating range of 59 to 94°F and works well with both fresh and saltwater aquariums. The LED display shows the current warmth level and you can easily adjust it using the buttons.

Our opinion

The model is simple in use and boasts a wide temperature range. Don’t hesitate to buy if you’re ready to pay for quality.

PROS

  • Wide temperature range;
  • Suitable for fresh and saltwater aquariums;
  • Can be placed anywhere.

CONS

  • Relatively expensive.
Eheim Jager Aquarium Thermostat Heater 50 Watt

Eheim Jager Aquarium Thermostat Heater 50 Watt

Review

Featuring suction cups, this best 50 watt aquarium heater is attached to walls. It’s made of shock-resistance glass and works well in fresh or marine water. There’s an indicator showing whether the device is on. The supported temperature range is 65° to 93° F – enough for any kind of fish.

Our opinion

High-quality, a versatile gadget which is perfect for any type of fish – highly recommended if you need fast and efficient heating.

PROS

  • Wide temperature range;
  • Heats up to 16 gals;
  • Efficient & powerful.

CONS

  • Can be placed on a wall only.
Hydor Submersible Glass Aquarium Heater 50 watt - Original Theo

Hydor Submersible Glass Aquarium Heater 50 watt – Original Theo

Review

Made of high-quality materials, this heater can be positioned any way you like, and the temperature range (67 to 91 °F) is adjusted easily thanks to the knob on the top. It heats up to 14 gals of water and doesn’t damage if runs dry.

Our opinion

A great choice for those who value versatility.

PROS

  • Wide temperature range;
  • Made of high-quality glass.

CONS

  • The temperature dial can be faulty in some items.

Frequently Asked Questions

Q: How Many Gallons Can Aquarium 50 Watt Heater Warm Up?

A: As a rule, such models can heat up to 15 gallons of water.

Q: How Long Does It Take For A Top Fin 50 Watt Aquarium Heater To Warm Up?

A: It depends on the initial water temperature and aquarium size. In aquariums up to 10-15 gallons, the heater warms water by 1°F/hour – it’s a safe rate for keeping fish not stressed.

Q: Top Fin Aquarium Heater 50 Watt How To Set Temperature?

A: It depends on the model – some of them come with a dial, while others feature buttons and display for easy temperature control. In Top Fin Aquarium Heater, you should find the knob on the side and turn it looking at the dial – you will see the red bar moving correspondingly. Set the red bar on the needed temperature level. Now when it works, its red indicator will be on, and it will automatically stop when the required temperature is achieved.

Q: How can I keep my fish tank warm without a heater?

A: An aquarium heater is an essential piece of equipment, especially if you keep tropical fish. However, sometimes, you may need to keep your aquarium without a heater for some time. For example, it may happen in the case of a power outage. Your primary task will be to retain the existing temperature. Use a thick blanket or a towel to wrap the aquarium around. If you have electricity, use aquarium lights to heat the water. If possible, try to raise the room temperature or use any other heat sources available. As a last resort, prepare several containers with warm pure water and add it gradually to the tank.

Q: Can you have the cord of the submersible in the water and is it safe?

A: Submersible heaters for aquariums are designed to be completely immersed in the water. As long as the cord of the heater is not damaged, there is nothing to worry about submerging it in the water. These are quite effective tools. They must be placed quite low in the water to distribute the heat evenly in the water. Even though you can position your submersible tank heater horizontally, vertically, or even at an angle, the best position is horizontal if it comes with a thermostat. Just be cautious to keep the heater off the gravel. Otherwise, the tank glass will crack, and a fire hazard will arise.

Conclusion & Our Recommendations

So, what is the best aquarium heater with 50 W power? Out of all reviewed models, we would recommend Eheim Jager Aquarium Thermostat Heater or FREESEA Aquarium Fish Tank Heater – the choice depends on how you want to install them. Most 50 watt models cost around $20, so the $1-2 difference doesn’t matter – look at the characteristics.

Sources:

https://fishlab.com/small-aquarium-heater/

https://en.wikipedia.org/wiki/Aquarium_heater

https://artofthefloat.com/2014/05/inline-heater-waterbed-heater/

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Phyllis Meyer

To keep your fish alive and healthy, you need to provide the correct environment for them, including the optimal water temperature. As such, you’ll need a reliable aquarium heater. It’s important to pick out the correct water heater that will adequately heat the water in your tank but not overheat it.

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