I would put the rocks in regardless of what fish you choose to stock. I think it's great structure all around.

Also, weed growth is greatly reduced in the areas that I have rock beds. That alone provides great vertical edges (going from weed to no weed).

I wonder if Brettski is really changing course here. I don't think he has selected a course yet, and anything he's done to the pond, structure wise, fits under the "generally good for any fish" category in my book.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."