acclimation for crustaceans

[Aquattro]

A note on snails. Lately I've bought snails from the LFS and bagged them without water. When I get home, I just throw them in the tank. I've had no losses doing this.
Shrimp have always just had the temp adjusted, a couple of 1/4 cup swaps of water, and in they go. Only things I give special treament to are stars, cucumbers, and things well known to be sensitive.