RM1200 on Waterbox tank

[sllral]

I am looking at installing the reefmat 1200 that was given to me as a gift in my waterbox 220.6 sump. It has the same sump as the larger frag models and the reef 180. Has anyone gotten this to fit and work with cutting only the sock chamber. Just converted over to a refugium and would love to keep that area of the tank. Thanks in advanced!

 

[tzabor10]

Any pictures? It is difficult to understand exactly what you mean