As you all know I have 55G marine tank. I also have a 100G freshwater tank. I'm wanted to break the 100G down and transfer everything from the 55 over to it. Just wondering if anyone has any experience with doing this? Ill be transferring the 55 lbs of live rock, about 40 lbs of live sand, and livestock. I already have a FX5 canister running on the 100G and was thinking of using the empty 55 as a sump underneath if it will fit. The skimmer i have is rated for FOWLR tanks up over 200G so i think i'm good on it. The only thing i think i might have to get extra would be more power heads, live rock, and more sand. This will be a lengthy process over a span of 3 months. Hopefully have everything set up by the new year. Any suggestions are appreciated.