Quarantine Tank

I was stuck in a pickle trying to figure out how to rig a quick quarantine tank for my sick little miss. There are so many things that need to be kept constant: temperature, ammonia, PH, Nitrate, Nitrite, salinity... I mean really, you need a whole new tank. So I did my Mama proud and totally jerry-rigged a quarantine spot: Ziploc bag clipped into the corner of the tank with a bubble hose dropped in. The tank heater will keep her at the correct temperature, it's a small enough amount of water that I can use tank water to fill the bag and do daily water changes with the tank water to keep her in the safe zone.. and the bonus being that in my frantic Googling I learned that one method of treating this illness is basically a saline shock.. namely, we dip her in fresh water for a few minutes at a time each day for a few days, then return her to her quarantine water that has a lower then average salinity. Apparently, when this doesn't kill the fish, it is rather effective in killing off any ich that the fish may have caught, as marine ich absolutely requires salt to survive. So we'll see.