WOW sorry I missed this post....
I have 2 Koralia in my Bow Front. A #1 and a #2. I have one in the mid section right side pointed at an angle down while at the other side it is close to the top with a flow pointed at the surface.
With my large structure I had to play with the flow over a couploe of days to get it right. As a result I have no dead spots, water is flowing great around as well as through the structure and the greatest thing is the "Trans-Warp Conduits" or currents (
sorry but I am a sci-fi geek
) that the fish will use to shoot through the tank.
Here is a pic from my tank profile that might help with the description
Since this pic I have moved the left power head to point more upward
and my tank profile is here
http://www.ohioreef.com/index.php?topic=4858.0Hope this was helpful in some way
Go Bow Front !