["Umm, fish?"]

Cheers! I've just received my MH retrofit kit and am trying to figure out how to place my splash guard and what size UV shielded glass I might need. I guess the first question is up to my ingenuity, but I was hoping for some help on the second.

Actually, let me revise my question a bit: how thick should the glass be? And a new question: how far should it be away from the bulbs?

I'm running 250W MH over a 120 (4' x 2' x 2') gallon tank, if it matters.

Thanks!

Andy