currently i have a single leo who has been alone in a tank for a year. a friend is moving to arizona and asked me to take care of hers for the next 4 years. if i were to combine the 2 in a single setup (hers is a few months younger and i will be getting them professional sexed to be 100% accurate. if not compatible it won't happen.)

what size tank will i need minimum?

i currently have a 20gallon long that has been made double tiered with 5 hides. 1 is moist and 1 is a hot.

online a lot says this is the minimum but i'm not so sure. so i'd like a minimum for experienced owners. i feel the 20 is barely good for my single. so he's allowed out often.

her's is in a 10 gallon reptile cage.