I am setting the 240 back up on it's own system to start splitting the livestock. I plan to fill it with fresh saltwater and get it to temp. Next is setting up and filling the 120 to use as an aclimation tank. Before catching fish, all unattatched coral will go to the frag tank, empty rock to my sump. This should make catching fish much easier.
Goal is to move all fish to the 120 for a 6 hour or so aclimation period. Next is sorting the fish by health with the healthy fish going to the 240 and the worst going to 10 gallon tanks for medication.
After all fish are out of the 120, I will set it up as a second sump for use in the 210 or 240 system. I am guessing the skimmer should go with the 240 full of unmedicated fish and the chaeto fuge with the 210 coral system.
This should allow things to stabilize a bit or at least divide and conquer or limit losses.