Aquarium Heaters

Aquarium Heaters

You may not even realise it, but many of the fish you are caring for might be sensitive to temperature and require a warmer fish tank environment than what you are currently providing for them. When choosing an aquarium heater, you can easily accommodate these needs and ensure that your fish are happy and healthy. For maximum control over the temperature of your fish tank's water, try a digital aquarium heater. This adjustable aquarium heater has a simple digital interface that allows you maximum control over the temperature of your tank’s water and has incredible precision to make sure that your tank is exactly as warm as you need it to be. Most fish tank water heaters are submersible, which can provide more even and immediate heating of water for those species of fish that are hyper-sensitive to slight and sudden differences in temperature.

Possibly the simplest tank heating solution is the tank heater with a thermostat. The aquarium heater with a thermostat is a common option for tank heating that offers a high degree of control while still being user friendly. So next time you need a tropical fish tank heater to care for your more exotic and sensitive species of fish, look to The Tech Den to be your go-to resource for fish care both online and in-store.

Do I Need A Heater For My Aquarium


An aquarium heater is useful for maintaining a stable and optimal temperature during the cooler seasons. It ensures a consistent temperature for your habitat, which is highly beneficial for the well-being of your fish. As many fish species are sensitive to temperature fluctuations, providing the right water temperature through heaters or water chillers and cooling fans is vital for a healthy and thriving aquarium.


How Do I Choose The Best Aquarium Heater For My Fish?


Choosing the right aquarium heater is crucial to ensure the well-being of your fish. Consider the following factors when selecting a heater:


- Tank Size: The size of your aquarium will determine the wattage required for the heater. A general rule is 1 watt per 1 litre; however, the heater will have a recommended tank size so be sure to check the box or description online. Larger tanks may need multiple heaters to distribute the heat evenly. Use our Aquarium Volume Calculator to find out more about your tank size.
  • - Temperature Range: Different fish species have different temperature requirements. Ensure that the heater you choose can provide the necessary temperature range for your specific fish. Consider what your fish rooms ambient temperature is when selecting a heater – if the ambient temperature of the room is cooler than normal, 1 watt per 1 litre may not be sufficient to hit your specific fish needs.
  • - Heater Type: There are various types of aquarium heaters available, including submersible heaters and preset heaters. Submersible heaters are fully submersible in the water and provide precise temperature control, while preset heaters have a predetermined temperature setting for easy use. Heaters also include different safety features that may best suit the needs of your aquarium such as titanium built, plastic casings, guards, or light indicators. These features put yourself at ease that your heater will not overheat or shatter.

What Are The Different Types Of Aquarium Heaters?


At The Tech Den, we offer a range of aquarium heaters to meet your specific needs:

  • - Digital Aquarium Heaters: For maximum control over the temperature of your fish tank's water, the Aqua Medic Controller Twin is the best choice. With a simple digital interface, you can easily adjust and monitor the temperature. These heaters offer precision and accuracy, ensuring that your tank is as warm as you need it to be.
  • - Aquarium Heaters with thermostats like the Aqua One Thermosafe combine excellent control with user-friendly operation, our aquarium heaters with thermostats ensure a consistent temperature.
  • - Submersible heaters like the Fluval T Electronic Heater are ideal for providing immediate heating of water for those species of fish that are hyper-sensitive to slight and sudden differences in temperature.

Remember that the heat level in your fish tank can also be influenced by factors such as lighting, pumps, and other devices you use.

For high tech and excellent quality heating solutions for your marine tank, have a look at the Aquael, Eheim and Aqua One ranges.


Starting a home aquarium can be challenging. There are lots of factors to consider depending on your aquarium. These include filters, air pumps and lighting. Contact our staff for any questions or concerns you may have about supporting your aquatic pets.

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