A bucket or other large, clean container is filled with dechlorinated water that is then adjusted to the approximate temperature and pH of the aquarium's water. An airstone and a piece of coral or other hiding place are also recommended. The affected fish are then carefully netted and placed in the treatment container for 5 to 10 minutes before being returned to their tank. If the fish appear to go into shock, they should be removed sooner. Repeat treatment every 24 hours for 3 to 5 days.
I would also make sure there is something to prevent them from jumping out of the bucket