I have decided to do a Foam/Rock wall to my 180 gal I have found a link and she did an awesome job on her 265 gal. I have been getting all the material together so in the next 3 wks I will be tearing down my 180 and start fron scratch. Here is the link I found on how to do this foam/rock wall.
http://www.reefcentral.com/forums/showthread.php?s=&threadid=1437901
http://www.reefcentral.com/forums/showthread.php?s=&threadid=1437901