Chris, the tank has been up just over a year. I found that when I started adding kalk to my topoff water, my coralline algae went nuts. It's like that in all of my tanks. The back wall of my frag 75g is completely covered, you cannot even see any of the glass.

And when he's not mad about being moved, that toadie is over 10" wide and reaches all the way to the top of the tank (about 16"). I moved his rock, so he isn't talking to me right now.