I have a couple of questions. First off I would like to know what is the best under the cage heater for a glass aquarium is. I know alot of people prefer the tubs and that's cool...I want to use my aquarium. Second which is better a thermostat or rhetostat (sp?) and what is a good 20 to 40 dollar one that I can get. and third I need a cover for my aquarium...I have a screen lock now but was wondering what would be a cheap cover to keep some of the moisture in.

Thanx in advance