Returning pet owner

So I don’t know if this is the right place to come to, but I used to keep exotic animals as a kid and would absolutely love to get back into owning exotic pets, I’m looking at getting 3 Vietnamese mossy frogs and was just looking for any bit of help anyone could give me for now to build an enclosure, this is the first time I’m gonna be making a bio active enclosure, I’ve been doing a lot of research but any bit of help will be greatly appreciated