Screen vs. Solid Side Cages
But dont they need the sreen for ventalation, also I read that they can get there claws stuck in the screen?
Metal screen cages have the potential to cause problems if the chameleon is of the right size that their claws go through the screen opening and can get jammed in enough that they get stuck. Straining my memory, I don't think I have actually ever seen this happen myself.
The bigger picture on this is that if your chameleon is crawling on the side of the cage that is a pretty good sign that something is off. A content chameleon with proper food, water, and visual cover will sit on its various perching branches within the cage. A chameleon scaling the walls is a chameleon who wants to change his environment.
As for ventilation, yes, chameleons need ventilation. You are trying to avoid stagnant air. The Breeder series cages are solid sided, but the whole front and top is screen so there is no place inside the cage where air can stagnate. There is more than enough ventilation even with the three solid sides. (You can read a more detailed response on this here
Screen vs. Solid Side Cages)
So, screen vs. solid side…
Advantages of screen cages : lower cost and higher visibility from all sides of the family pet.
Disadvantages of screen cages: mist will spray outside onto walls and furniture, there is no real hiding place for your chameleon to retreat. Challenging to horizontally branch the cage without compromising the screen side.
Advantages of Breeder Series cages: solid sides keep in the mist, give visual isolation in case you want to have more than one chameleon, allow the creation of a true hiding spot, have solid anchors for mounting horizontal branches, and are optimized for fitting on common baker’s racks to promote organization in a large collection. The Breeder series also allows the more advanced keeper to put together a naturalistic vivarium for chameleons.
Disadvantages of the Breeder Series Cages: More expensive and the three solid sides limit the viewing angles from outside the cage.
They both have a place and it really is up to you to decide which fits your needs. Both work well.
Bill