Yeah, you have to be carful with keeping differn't species together.
I would keep the two seperate. I'm not sure on their specific requirments because i'm more into snakes but have a look through the care sheet section.
I'm sure somone else can help more on them.
I think you've been very smart in asking another shop for advice and then coming on here. You oviously care alot about them and want to be a good rep owner, so well done