The project can be about almost anything, and I want it to be this. The reptiles don't need to be the species I have listed, and they probably won't be because the more I research the more I find about it being just bad. The lizards don't need to stay together forever. That simply wouldn't be feasible for me. They need to stay together for approximately a year. I'm planning on having them sealed off from each other for a month or two, and having them acclimate to each other a little outside of the cage at first. I'd actually prefer to have smaller reptiles so I can get a smaller cage. They just can't be the same species because I feel that would hurt my project, and make it too simple. The cage will also be bioactive. I'll test it on my snake first to see what problems I run into with that, and then make a similar setup for the reptiles. Until another person responds I'll be looking into smaller species that get along well. Don't worry about being rude. I'm inviting criticism so I don't care. Like I said I really don't know what I'm talking about here so any responses are appreciated.