What stage Gongys are they Checco? That will make a difference. As far as molting room goes, it is good and that is pretty much what I am using and what I have seen in much more experienced breeder situations for Gongys. They are not much into moving around, so even if they are adults, of one sex, it looks decent. I personally like the one size larger from www.livemonarch.com If you go through kitkat39 it is better.