Welcome to the forum.
I'm seeing the wrong
kind of UVB, especially for MBD.
It should be a
linear T5 HO, either Reptisun 5.0 or Arcadia 6%—running the entire width (e.g. 24") of the enclosure.
Analog/dial type meters are notoriously inaccurate—up to 40°/40% off.
Digital hygrometers and/or thermometers with probes are more accurate (±2°/2%), and an measure conditions in the microclimates withing the plant canopy.
https://www.amazon.com/gp/product/B08Y6CYVT9/ref=ppx_od_dt_b_asin_title_s01?ie=UTF8&psc=1
Unless the enclosure is full bioactive, substrate should not be used. It can promote mold, mildew, fungus, and bacteria.
Live plants (and vines) help increase and maintain humidity. Here are some lists of chameleon-safe plants. Those safe for veiled chameleons will be labeled as such:
https://chameleonacademy.com/plants/
https://caskabove.com/chameleon-safe-plants
https://www.madcham.de/en/pflanzen-fuers-terrarium/
https://www.chameleons.info/l/safe-and-unsafe-plants/
A
LOT about correct husbandry can be found in the
Husbandry Program at Chameleon Academy.com
https://chameleonacademy.com/chameleon-husbandry-program-getting-started-with-chameleons/
There's more, but please copy/paste the questionnaire with your answers filled in (using a different color or font will help with clarity). Include pics from the top (showing all lighting) to bottom (showing drainage).
Chameleon Info:
- 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 Info:
- 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.
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Please Note:
- The more details you provide the better and more accurate help you will receive.
- Photos can be very helpful.