Hopefully someone can help me out. I want to install a bigger sump/fuge to my existing system. It currently has a couple of chambers. The first is where the water comes from the display tank and passes through a filter sock. It then goes through a series of baffles to the fuge area. The fuge contains about a 2 1/2 inch sandbed with cheato,mangroves and live rock.It then goes to the last chamber where the return pump sends the water back.I have an aqua c remora hanging on the sump as well as a phosban and carbon reactor. The reason for the new sump is I want my skimmer in it and I hate having to top off so often.
My question is when I do get the bigger sump I can't just scoop out the sand and place it in the new one right? I think I read somewhere that it's not a good idea.How can I set up my fuge(compartment) in my sump again without the chance of disrupting the balance of things and without any ill affects to my reef.

Any info is greatly appreciated

Sorry for the bad shot but I thought a visual might help. The center section with the sand is under the fans
