Hi! I'm considering putting my first saltwater aquarium. Just one problem, the one I'm looking at doesn't have any form of lighting, and you can't attach any form of lighting. Its a bio-bubble. So, two questions, 1. Is there any small forms of lighting that I could put inside the tank, like, maybe just attach to the top on the inside or something? 2. What are some really low light corals I could place inside the tank? Thanks!