The Best Submersible Aquarium Heater 2020 – Healthy Fish Is Happy Fish
Author Aubree Rose Reading 1 min Published by
Maintenance of an aquarium is a challenging task since you need to take care of many things including water temperature. With a submersible aquarium heater, you eliminate manual work and create an optimal atmosphere for your marine friends. How to choose the worthiest model? Let our ultimate guide help you!
Table of Contents:
What Is A Submersible Aquarium Heater?
Compare The Best Submersible Aquarium Heaters
Submersible Aquarium Heaters Reviews
1. Aqueon Submersible Aquarium Heater
2. FREESEA 50-300Watt Aquarium Fish Tank Heater with LED Temperature Display
3. Aquatop Aquarium Glass Submersible Heater, 300-Watt with Liquid Crystal Vertical Aquarium Thermometer
4. ViaAqua 200-Watt Quartz Glass Submersible Heater with Built-In Thermostat
5. Orlushy Submersible Aquarium Heater,100W/150W/200W/300W Fish Tank Heater
Frequently Asked Questions
Conclusion & Our Recommendations
As its name suggests, this is a device that’s kept submerged in aquarium water to heat it up and maintain comfortable temperature for fish. There are several types of heaters:
|FREESEA 50-300 Watt Aquarium Fish Tank Heater with LED Temperature Display|
|Aquatop Aquarium Glass Submersible Heater, 300-Watt with Liquid Crystal Vertical Aquarium|
|ViaAqua 200-Watt Quartz Glass Submersible Heater with Built-In Thermostat|
|Orlushy Submersible Aquarium Fish Tank Heater|
Simple and minimalistic, Aqueon heater can be placed in any position (horizontal or vertical). It allows adjusting temperature by 1 degree within the range of 68-88 °F. The model can be used in aquariums up to 20 gallons. Once the required temperature level is set, it shuts off automatically to eliminate the risk of overheating.
A cheap, convenient model, but it can heat one part of aquarium leaving the opposite walls quite cold.
Ideal for small aquariums up to 10 gallons, this fully submersible aquarium heater boasts the temperature range of 59 to 94°F (15 – 34°C). It can maintain the optimal temperature automatically and will stop when the needed level of heat is reached. The temperature is shown on the display, and you can change the settings manually.
Great for replacing other thermometers, should be used in small aquariums.
Another automatic heater, the model from Aquatop has a preset temperature of 78°F ( + / – 2°), so no adjustments are required. It’s produced from durable PPC plastic. The indicator shows when the device is on, and a suction cup allows placing it where you need. Suitable for small aquariums up to 5.5 gallons.
Good option only for small aquariums with tropical fish.
This is the best submersible aquarium heater for larger aquariums (up to 200 gals). You can use the model in both saltwater & fresh aquariums. Made of high-quality quartz glass, it withstands damage and has a temperature range from 68 to 93 °F.
A perfect choice for large aquariums and optimal overall warming.
This 300 Watt heater is made for large aquariums (50-80 gal) and comes with a thermostat to control the temperature ranging from 68 to 89°F. Automatic shut off prevents overheating. It’s equally good for saltwater & freshwater tanks.
Non-expensive but a bulky heater for large aquariums, buy it if you’re ready to deprive your fish of a bit of space.
A: You don’t want the aquarium to be melted by the hot thermostat, so choose models where the coil is encased in glass. Besides, it’s better to choose models that are supposed to be simply submerged in water and don’t have suction cups or other elements attaching them right to the tank walls. Generally, it’s safe to use aquarium heaters in plastic tanks – it still has a safe temperature.
A: The process is quite simple:
If it doesn’t have an automatic shut off, you’ll have to watch the temperature of the water and switch the thing off at the right moment.
A: It depends on the model. In most of them, it’s done with buttons – follow the applied instruction.
A: Some of the heaters can be attached to the inner side of aquarium walls with suction cups. Others simply hang on a cord and can be left submerged.
A:If your aquarium heater broke, you should throw it away immediately. Don’t try to repair it and use one again, even if seems easy to you. Just to be on the safe side, buy a spare heater: if your old heater breaks, you will be able to replace it quickly. Another precaution measure includes buying a cover for a heater. It will prevent its contact directly with fish and the water in the case of breakage. Finally, it makes sense to follow the manufacturer’s instructions on the heater maintenance and clean it regularly in order to increase its lifespan.
A: Every aquarium heater type requires a certain method of installation. If you opt for a submersible one, it should be placed low into the water yet not touching the gravel. As gravel won't conduct heat well, once you turn on the heater and it heats the gravel, the tank glass will crack or shatter. Submersible heaters are fully submersible and no part must be left out of the water. If your model has a thermostat, you'd better install the heater horizontally. This way the thermostat will spot the water temperature more accurately to turn the heater on and off when necessary.
Hopefully, these submersible aquarium heater reviews will help you make the right decision. For small aquariums, Aqueon Submersible Aquarium Heater is the most cost-efficient choice with a price tag up to $20. For the same price, you can find a model for larger aquariums, for example, Orlushy Submersible Aquarium Heater.
When in search of a heater, look at three key aspects: power consumption, materials, and automatic temperature control. Besides, temperature range also matters. For tropical fish, seek for models with a high heating capacity. For marine fish, choose heaters to keep water at the level of 60 F degrees.