Quote Originally Posted by straydog1980 View Post
what do you guys recommend for insulation? I have a 55 gallon glass tank and I have had trouble maintaining humidity ever since I got it. I tried putting plastic over the top but that doesn't seem to be helping very much. Should the sides of the tank be insulated also?
A lamp is the main culprit in reducing humidity. I use aluminum foil tape to cover my screen tops and it works very well.

Insulating the back and sides of the tank with black foam core board will also help.