Hi! We keep adults and sub-adults in 24"x24"x22" cages. Neos and up to about 1-1/2 year olds are kept in "shoebox" and small rubbermaids. we have slight larger caging for breeding size females. CraigC
My sub-adult is in a 30Lx12Dx24H. The key to ETBs is lots of climbing branches in varying sizes but not too many that you will overcrowd them. They need their exersise as most will not tolerate handling. Also consider a cage that will hold humidity which is imperative to their health of no less then 70%. Preferably 70-90% day, 60-80% at night. Just please remember ETB's are not Burmese, meaning they are very delicate snakes when it comes to care. Trust me I have both. Moreso they are the gems of the snake world. Handle with care and they will live a long and happy life.