treating main tank

[sqrle]

I just moved some fish from QT to my DT. After about 24 hours saw one with signs of ick, scratching and maybe slightly high breathing rate. The next day, saw spots on the fins. The next day the spots were gone but i could still see some areas where the spots were, looks like the peppermints picked the spots off. What I am wondering is if it is possible to treat in the main tank for ick if I remove all of the inverts and corals. I do not have the space or the money for another 55g tank. I have a 10g that I use for QT. What I was thinking is to put the corals and inverts into the QT and treat the main tank. Then after about 3 months, move the corals and inverts back. is that possible to do that. I don't see why not.

I will be doing a series of water changes to get the ick treatment out of the water after the fish are better. I am just trying to figure out if this will cause any problems down the road, or will it kill off any good bacterias and stuff.