he has no room in his apt for QT
take the fish and sell them , keep the tank fish free for a few months and concentrate on the corals . When you do get to buy new fish , go to a place that can QT the fish for you , may cost you a few extra $$ but worth it .
Using any chems or product that will mess with you chemistry of your tank. Is not good , plus 1st rule of reef hobby , dont add any chems to your display tank
jmo