DIY fan

[stocker]

[quote:074c2597f0="juggler"]
The reason is wastage of electricity.

What is the wattage of your AC fan? I could be wrong about yours but AC fans are likely to be of higher wattage than DC fans. Eg. A normal DC fan could be around 12V, 0.14A. That works to be 1.7W. And we don't need many of these to cool the tank.[/quote:074c2597f0]

Oh OK, I see what you mean. Looks like I better get a 12V fan and deploy my 220V fan somewhere else!

[tawauboy]

ac fans normally consumes more than 10w of electricity.
and ac fans are more dangerous if they fall into the aquarium.