Scorpions can't see red.
Heat lamps are not necessary (adhesive heating pads on the side don't dry out substrate nearly as much), but for the reason you found, red is a popular choice when they are used.
_________________
If your emperor scorpion stops eating, don't panic. | My
reviews | My Bug Pictures | My blog
Be nice -- you were a noob once, too
"Never ask an engineer to explain something, because he will."