Your Chameleon - The species, sex, and age of your chameleon. How long has it been in your care?
Handling - How often do you handle your chameleon?
Feeding - What are you feeding your cham? What amount? What is the schedule? How are you gut-loading your feeders?
Supplements - What brand and type of calcium and vitamin products are you dusting your feeders with and what is the schedule?
Watering - What kind of watering technique do you use? How often and how long to you mist? Do you see your chameleon drinking?
Fecal Description - Briefly note colors and consistency from recent droppings. Has this chameleon ever been tested for parasites?
History - Any previous information about your cham that might be useful to others when trying to help you.
Cage Type - Describe your cage (Glass, Screen, Combo?) What are the dimensions?
Lighting - What brand, model, and types of lighting are you using? What is your daily lighting schedule?
Temperature - What temp range have you created (cage floor to basking spot)? Lowest overnight temp? How do you measure these temps?
Humidity - What are your humidity levels? How are you creating and maintaining these levels? What do you use to measure humidity?
Plants - Are you using live plants? If so, what kind?
Placement - Where is your cage located? Is it near any fans, air vents, or high traffic areas? At what height is the top of the cage relative to your room floor?
Location - Where are you geographically located?
Current Problem - The current problem you are concerned about.
Pictures are helpful
He is a male veiled chameleon , he is about 2years old . I have had him since he was 6weeks old .
He is handled every day ( oh I forgot to mention he does not seem to use he tongue anymore ?) as I have to manually place food in his mouth. It can vary how much he eats one day he might eat 20 bugs then another only 2. He is fed every day around 5pm and he is getting mealworms, wax worms , locusts and crickets, that are gut-loaded with fruit and veg. He gets Repti-Calcium with D3 twice a month ( I am currently waiting for plain calcium to arrive in the post). His vivarium is sprayed about 3 times a day i see him drink the drops off the sprayer and has a waterfall at the bottom of his tank . His droppings are brown and white with a bit of yellow . He had a parasite test a few months ago and he had worms which are now gone . He has a wooden vivarium with glass doors and a wire top . It is 42x62x92. He has a standard 150w heat bulb and a Exo-terra UVB bulb. He has both lights on from 8am till 10pm . His basking spot is around 29c and at the bottom 19 I measure these with an Exo-terra thermostat. The humidity is around 70-80% I measure these with an electronic humidity gage . There is a dracaena plant and a spineless yuka. The vivarium is about a meter above the ground not near any air vents or high traffic areas. I am located in uk , Scottish Borders . Stitch ( my chameleon ) has MBD . !
It doesn't surprise me that he's not using his tongue. Like I mentioned, calcium is present in every electrical signal that your muscles receive, so if there isn't enough calcium to go around then he'll start losing function and coordination. That's a pretty typical side-effect, unfortunately.
Ok, you're getting plain calcium in the mail which is good. You'll need to start dusting all your feeders with this daily once you get it. Not excessively coated, but dust everything you feed him.
How old is the UVB light?
Do you have any photos of him right now? I'd love to see how he looks physically, it'll help me (and others) in what we suggest. If the MBD is really bad, for example, we actually recommend that you put the chameleon in a cage that is low and horizontal, so they don't fall and break bones.
I think you might need to update your uvb light and make sure you dust the feeders with plain calcium (when it arrives) on every feeding. Also why do you feed him at 5pm? Isn't this a bit late for him to digest his food properly? (someone with more experience will be able to help with this). I wish you luck with your little guy. I hope you can stop the mbd getting any worse and he regains the use of his tongue. You will receive some excellent advise from the members of this forum.
Can you post photos of him from the side please?
The uvb bulb definitely needs to be replaced.
ANy chance you can take him outside?
How long has he had no calcium no d3 powder?
What are you gutloading your bugs with?