Hello, I would like to repot two ponytail palms that are currently in their original container. I got them this way from a friend 5 years ago. There is a larger one (root looks to be about 7cm in diameter) and a tiny one (root looks to be about 3 cm in diameter) and they are growing side by side - touching. They have outgrown the pot and it is now stretched and cracked. Should I attempt to separate them? If so, how should I do it? What can I expect if I do? Thank you very much for your consideration!