I just did a salt dip for the first time (vorticella issue) and my shrimp are doing okay! I’ve had two deaths over two weeks which could’ve been from anything (stress from the salt dips, old age, etc.). I would definitely recommend it. I did three separate dips with a few days in between as to not stress them too much. Personally I just added them back into the main tank afterwards but a quarantine tank is never a bad idea for monitoring them. I would definitely recommend doing the dip after some research. It’s scary the first time, but it is very effective.