Anyways....... I am just saying they are younger... So if your going to suggest they use it make sure that you are saying it should be a limited use and not used for an older cham is all. This hobby is confusing enough when someone is new and when we are not clear on our recommendations is when the cham and the keepers pay the price.He stated, could he use the cage temporarily while setting up another cage, just so his dad would be happy he used it for a few weeks. If he already had the other cage. That would be fine, I also doubt it's 12x12x20. The only 2 I can think of that size would be the small reptibreeze which is 16x16x20, or the Zilla Atrium which is 18x12x20. Though maybe it's a custom or some oddball.