A Guide To Aquarium Heaters

How do you choose the right sized aquarium heater?

1 watt per litre of aquarium water is the rule of thumb. Most aquarium heaters have a manual thermostat so you can adjust the heater accordingly which is important if you are in colder or warmer climates. The key to keeping a healthy aquarium is to try and reduce the fluctuations in temperature.

Tank Size	Heater Size
25 Litres	25 Watt
50 Litres	50 Watt
75 Litres	100 Watt
100 Litres	100 Watt
150 Litres	150 Watt
200 Litres	200 Watt
250 Litres	250 Watt
300 Litres	300 Watt

Having a spare aquarium heater

Having a spare aquarium heater is really important to ensure that if one heater fails that the other heater is on hand to help out. In a larger aquarium we suggest you have two heaters so that if one fails you are covered, it also gives a more consistent heat across the aquarium.

Aquarium Thermometers –

Liquid Crystal Aquarium Thermometers – These stick onto the front of the tank and measure the temperature through the glass.

Glass Aquarium Thermometers –

These are the most traditional thermometers that have a red line which rises and falls with the temperature. Glass aquarium thermometers go on the inside of the fish tank and have a suction cup so you can stick them to the glass.

Electronic Aquarium Thermometers –

these have a LCD display, some also have a memory so you can track the fluctuations in your aquarium.

Aqua-minder Aquarium Thermometers –

this is an electronic thermometer with a few extras, you are able to program your maintenance schedule into the aqua-minder and it will remind you of when your maintenance is due.