I forgot to mention that I have about 120 lbs of sand as well as about 100 lbs of live rock. you can't really tell from the pictures, but I put a layer of eggcrate on the bottom, added about 33 lbs of "live base rock" then put the sand in on top, so the visible rock is actually sitting on rock and not sand.

I plan on adding more base rock in the fairly near future and moving the rock away from the back glass. I'm also going to finish plumbing my return line so I can open up the ball valve on the pump and get the water flowing like it should be. I'll be adding another power head (or split the return line) to provide flow behind the rocks as well.

Anybody have any suggestion to make my tank better/safer? Constructive criticism welcome.