Hi lik3n and welcome to the forums. I would advice against putting the newcomer in the same enclosure as the adult. I would recomend that the new comer be quarantied for a period of time to see if he/she has any parasites or diseases that could be spread to the adult. Also remember to wash hands after you handle the small one, as this is would prevent the transmission of the aforementioned to the adult. Once again welcome to the forums. Please feel free to use the search function, as this is an invaluable tool on the net. Welcome to the best Ball Python community in the world