Yet another way we "pamper" and over-stress about these guys lol... As long as you monitor feeding, I did 3 months for both of my guys and they are doing just fine... Remember, these guys aren't born in a cage in the wild... As arboreal creatures they love room, space, height, trees, light, and well food... So as long as your giving those things the cham will be okay... I personally think they are more stressed in a small cage than when you put them somewhere where they can hide better... At 3 months Herbie went nuts in his small cage crawling everywhere and he STILL had some growing room.. I think it's a personal choice, if they can find their food then there shouldn't be any issue... JMHO