this is from my lfs
Turn off your aquarium lights (reduces stress), and float the unopened bag for 15-20 minutes to equalize the temperature in the bag with that of your aquarium.
Open the bag, and float in your aquarium.
Add 1 cup of aquarium water to the bag.
Wait 7-10 minutes, and add 1 cup of aquarium water to the floating bag.
Repeat steps 3 & 4 until bag is almost full.
Remove half of the water from the bag and repeat steps 3 & 4 until bag is almost full.
Do not add the waste water to your aquarium!
Remove your fish or invertebrate from the bag and add to your aquarium.
Dispose of the waste water.
Leave your aquarium lights off for at least 12 hours. This will allow your new arrival time to adjust to it's new home, and will help reduce harassment from your existing animals
dripping can be done instead of using cup to add water