my chameleon hasn’t grown very much do to not being able to eat a lot and i wanted to move him into a bigger cage and idk whether to do a large repti breeze or x large.idk how much he’s going to grow. He is 5-6 months
I mean, that is a pretty good size for a single chameleon. I have the exact same size as you. Unless you want to buy another bigger cage, I would say that you don't have to, especially with a little guy. Their habits and conditions are harder to track in a bigger enclosure. That is just what I recommend.