Post some information about your setup so we can get an idea of how he might be dehydrated in the first place.
fill out this info
Cage Info:
* Cage Type - What kind of cage are you using? What is the size?
* Lighting - What kind of lighting are you using? How long do you keep the lights on during the day?
* Temperature - What temperature range have you created? Basking spot temp? What is the temperature at night?
* Humidity - What are your humidity levels? How are you creating and maintaining these levels?
* Plants - Are you using live plants? If so, what kind?
* Location - Where is your cage located? Is it near any fans, air vents, or high traffic areas?
Chameleon Info:
* Your Chameleon - The species, sex, and age of your chameleon.
* Feeding - What are you feeding your cham? What amount? What kind of schedule? How are you gut-loading your feeders?
* Supplements - What are you dusting your feeders with and what kind of schedule do you use?
* Watering - What kind of watering technique do you use? Do you see your chameleon drinking?
* Fecal Description - Briefly note colors and consistency from recent droppings.
* History - Any previous information about your cham that might be useful to others when trying to help you.
* Current Problem - The current problem that you are concerned about.