Best option really is to have a dedicated tank for the SN. If you were mixing other high ends, I would give you a high sense of possibility. BWs and rainbows and high ends is very much a roll of a dice.
If you are to try, make sure you have cipro on hand. It's a pain in the butt of a process but you don't want to be caught without and waiting for delivery (Neptune has them BTW) when you are in a dire situation. 250mg per 10G , 100% WC daily with daily redose for 10 days.
All this talk of nems makes me realize I need to get off my lazy butt and get around to offering up a few and other stuff as part of my tank reorganization. 20 supernovas... is probably a few too many. hah.
in any case -- good luck.
