Ingy
Aquarium Advice Addict
You can use ammolock to make the ammonia non-poisonous. But, yes treatment is stressful. On the plus side, the filters still work to remove poop and food bits, and as long as you change the filter floss more frequently, you should be ok. The fish hopefully too. After the recommended time in the hypo water passes, you get to slowly raise salinity back up. Your bacteria may reactivate or just repopulate in the tank and bio filter. Then you leave them in the normal levels hospital tank for the duration of the quaranteen to ensure all ick is dead in the tank and that the fish are truely cured. Not the entire 8 week period will be in hypo, so it shouldn't be too bad.
Good luck
Good luck