If you can empty the tank quite a bit you might be able to slide the whole tank and stand. BUT depending on your flooring and the equipment you have underneath a slide might not work.
If it were me, I would probably try to slide it, but I can be anal retentive. LOL
If you can't do the move I don't see why you couldnt use a koralia on the one side. You would loose the option to sync the two mp's though. :-( I have a single mp10 in my 60g and it works out just fine. I guess it's up to you and how much work you wanna put in to have the two mp's.
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.