Aquarium Heaters

Most aquarium fish come from warm waters and need to be above room temperature. Aquarium fish heaters are inexpensive and keep temperatures stable in your fish tank aquarium no matter what it's like outside - vital since fish don't produce their own body heat. To choose the correct watt heater for your aquarium tank please see this aquarium heater guide which located at the bottom of this page. 25w Aquarium Heater £7.75 25w Aquarium Heater ... £7.75 50w Aquarium Heater £7.99 50w Aquarium Heater ... £7.99 75w Aquarium Heater £8.99 75w Aquarium Heater ... £8.99 100w Aquarium Heater £9.49 100w Aquarium Heater ... £9.49 150w Aquarium Heater £9.99 150w Aquarium Heater ... £9.99 200w Aquarium Heater £10.99 200w Aquarium Heater ... £10.99 250w Aquarium Heater £11.49 250w Aquarium Heater ... £11.49 300w Aquarium Heater £12.49 300w Aquarium Heater ... £12.49 This fish tank heater guide will help you make an informed choice when deciding which aquarium heater will be suitable for your aquarium fish tank. To use the guide please refer to the following example Average Room Temp = 68 degrees F Desired Water Temp = 77 degrees F ----------------------------------------- Heating required = 9 degrees F Tank Size = 20 gallon Heater size needed = 50 watts Gallons/ Litres 5ºC/9ºF 10ºC/18ºF 15ºC/27ºF 5 gal / 25 lit 25 watt 50 watt 75 watt 10 gal / 50 lit 50 watt 75 watt 75 watt 20 gal / 75 lit 50 watt 75 watt 150 watt 25 gal / 100 lit 75 watt 100 watt 200 watt 40 gal / 150 lit 100 watt 150 watt 300 watt 50 gal / 200 lit 150 watt 200 watt two 200 watt 65 gal / 250 lit 200 watt 250 watt two 250 watt 75 gal / 300 lit 250 watt 300 watt two 300 watt