What Size Heater?

[Gurglar]

What size heater for a 5 gallon (20 litre) tank? Would a 50watt work or would that be to much?

 

[blue_soda025]

A 25W or 50W heater would be suitable. I have a 50W in mine and it's fine.

 

[fishdawg]

id say 25w..... 50w would prob be to big for your tank. i have 50ws in my 10g's and they never move a degree.

 

[xoedusk]

25 Watts for sure. In case it malfunctions.

 

[Inchworm]

Hi Gurglar

The rule of thumb for heaters is to have 5 watts per gallon of water. This means that a 25 watt heater will do the job.

It's harder to find the smaller heaters, so if you need to get a 50 watt, it would probably be fine too. Just be sure that the heater you get is run by a thermostat and is not preset at a particular temperature.

 

[Gurglar]

Hi Gurglar

The rule of thumb for heaters is to have 5 watts per gallon of water. This means that a 25 watt heater will do the job.

It's harder to find the smaller heaters, so if you need to get a 50 watt, it would probably be fine too. Just be sure that the heater you get is run by a thermostat and is not preset at a particular temperature.

ok thanks for that i've been looking for a 25 watt but am having a hard time finding one like you said. Thats why I was wondering if I could use a 50 watt. thanks.