@nightanole gave some good advice. The supplements you have are to be given just one feeding twice a month. For example, on the 1st and 14th of the month, you’ll use the multivitamin. Then on the 7th and 28th you’ll use the calcium with D3. All of the other feeding you need to use a calcium without D3. I do not advise giving any additional vitamin A unless your veterinarian tells you to. If you want a much easier and better way to give the D3 and multivitamins, there are a couple of combination products that are excellent - Repashy calcium plus LoD or Reptivite with D3 (Make sure it says ‘with D3’). Attaching pics of each below.If you get one of those, then you don’t need the calcium with D3 and the multivitamin - toss them aside. You’ll still use the calcium without D3 at every feeding, and then one feeding every other week you’ll use either the Repashy or Reptivite. That’s it! Super easy and both of the combo products contain a form of vitamin A that is better than the Fluker’s and most others have.
The type of uvb light that you have isn’t able to provide the levels that your guy needs. The long T5 with either Arcadia 6% or ReptiSin 5.0 uvb bulb is the best to use. Then the basking area will need to be about 9” (23 cm) below the light. The basking light is probably much too strong and is too hot, especially for an enclosed glass space. Also, keeping the lights inside the tank puts your guy at a very big risk for getting burns. I’m guessing you’re in Europe, where that is the standard. It‘s best to have your lights on for 12 hours a day and no lights at all at night.
Your chameleon may not be so big right now, but he will be soon and he definitely needs a much bigger enclosure. The standard minimum is 60x60x120 cm or equivalent. Unless you are somewhere very dry, I would suggest getting a screen or hybrid enclosure. It’s easy to block off the back or sides if needed with screen and still have excellent air flow. Then you need to create a tree inside. You can use something like a garden trellis secured to the enclosure frame to attach branches and vines to. Put in lots of branches and give him many little roads to travel on. You also need lots of live plants. Pothos is excellent for chameleons. Our veiled friends like to nibble on their plants and it only takes one bite of a fake leaf to cause a potentially fatal bowel obstruction.
It’s very important to monitor temperature and humidity levels. The ideal basking temp for your guy is around 85 (29c) and ideal daytime humidity is between 30-50%. At night you want it to cool down and it’s ok if it gets as low as around 55 (12c).
Getting these things correct all will contribute to your guys eye and general health. Young chameleons can very easily have problems if even the smallest piece of their care is wrong. There is more, but I think I’ve talked more than enough for now. Here are some resources that will help you with everything.
https://chameleonacademy.com/chameleon-husbandry-program-getting-started-with-chameleons/ https://www.neptunethechameleon.com/ Do ask any questions you have. Hopefully with the corrections in care and some time, your handsome guy will be feeling much better and be healthy.
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