Fresh water dip

I have been told by some fellow salt water enthusiasts that its a good idea to do a fresh water dip to any new fish you get before introducing them to your tank. I'm slightly puzzled by this. Why would i go through the trouble of a 2 -3 hour acclimation if I'm going to be exposing them to a environment with 0 salinity. Your thoughts and opinions will be greatly appreciated.

 

Thats insane......who ever said that was not thinking at all

 

Thats what i was thinking. Im about to dip a clown which has "ich" and move him to a qt and some people were telling me this. I thought they were crazy

 

It's not insane. It has to do with the idea that any parasites on the fish will die off.

It's a misconception that it kills ich (it'll kill any ich in the drops of water with the fish, but not any ich already burrowed into its body, and it'll kill most other parasites), but fish can take a FW dip, then go right back to saltwater, and be fine.

I don't drip acclimate or anything like that for fish. Temp and dump in the tank.

 

So acclimate before or after the dip??

 

I drip acclimate......to each there own.....I know a FW Dip won't hurt...but why...i never mail order fish and make sure they are healty and eating before I buy from my LFS.
Stress causes ick and it usaully is a good thing to find out why...water perameters etc...
I just had a small yellow tail tang get it and if your water parameters are good it will dissapear....mine lost it then 2 weeks later it came back because my Gold Bar Clown was harrassing it....now it has been a little more than 2 months and she is fine and growing.....
JMO

 

If you are moving the fish to a QT, then just use a 4 week hypo-salinity treatment.

About Hyposalinity or Osmotic Shock Therapy - A Simple, Effective, Non-Chemical Treatment for Ich