Well I couldn't take it any longer, so I had to start my first DIY.
Just incase you don't know my background, I work with my dad, who own's his own CNC Machine shop. Its a small shop, mainly just the two of us work there. We've got 2 CNC machines (VMC) and a manual lathe, and a few other stuff.
Anyhoo, I'm also new to the whole reef thing, and if you're read any of my other posts, you'll know I just started off (or check my blog).
Well I noticed how much the water evaporates from the tank, and also the heat loss. So today, I made my own tank cover for the top of the tank (duh). I just installed it, however, as always, I made it a little too big. I've also gotta do some small modifications to it for the wires, and so forth, which I'll do tomorrow. All in the learning process
without the cover 
with cover 
cover on its own 
more pics