Well, that looks like a great start!! I agree with chad that you would probably not be able to drill, but I'm sure there are other ways of getting around it. I've seen someone do something similar on nano-reef.com (tried looking for it but couldn't find it, I'll keep searching
) It was a taller vase with a narrower opening with two white pvc tubes hanging over the egde. Anyway, good luck and keep us posted!!