Lots of people have success and keep there chams in glass but since you are a beginner and don't know the proper care right now listen to the advice we are giving you but if you don't want to listen and keep persisting to use a glass cage after we tell you there bad then don't bother asking for help. You need to get him a screen cage ASAP and no one here is trying to Bash on you or anything its just upsets some people when you don't listen to the advice their giving you.