Jamie
Get this pump!
This was on my christmas list, my daughter got it for me. MUST HAVE!!! Fits perfectly into the original place if you remove the covers, no other mods needed. A clip of about an inch and the original exhaust hose fits as well. ONLY downside, by removing the covers, you lose the control over your flow rate. I solved this by putting the original water director back in place (i know many of us took that off to increase flow). This combined with the in tank media tower....it's a no-brainer....if you want a happy reef.