Ace,
IMO, I would just get a BIG plastic barrel and remove as much rock as neccesary and get the damsels out now.. The thought of doing it stincks BUT you will be happy you did it... Think of it as redecorating..
If you have another ICH outbreak and you need to QT your fish. those damn damsels (as I call them) are gonna keep the ICH cycle going in your display. Once ICh is in your tank its always gonna present a problem...... So, just bite the bullet, remove the damsels and let your display tank sit without fish for 4-5 weeks... Then by that time, your fish in QT will be ready to go back into a ICH FREE display tank..
We have ALL seen it here.. we try to do everything and anything to get rid of ICH.. instead of doing what would have worked in the first place.....LAST!!
??did that make any sense??
OL
Good luck, Kim