Fog

[7santiago]

I just got a 20gallon long tank and i put a couple of incandesent plant light bulds and these lights are foging the entire tank. How do you deal/remove with this?

 

[hexen84]

you probably need more air circulation in order to prevent/eliminate the fog. PC fans are the most popular choice at getting the circulation.

 

[Capslock]

Make sure your tank is not sealed. It should have good air ventilation - even to the point of putting a small computer fan inside. Also, incandescents put out tons of heat. Switch to fluorescents!

Capslock