Making sure you acclimatise your fish and shrimp properly is essential. In fact, pretty much anyone who we have dealt with who has a problem with their shrimp have not acclimatised them properly - they've rushed it and it's cost them and the shrimp dearly.
TMC have introduced a nifty device which means you no longer need to worry about getting it wrong. You drip feed the water in and take your time over it. You don't guess, you get it right, each and every time. What I particularly like about the TMC Acclimatisation Kit is the simplicity and the fact that once you have invested in it, you can keep it for as long as you are in the hobby. Think about it - how often are you going to buy fish and shrimp in your lifetime? A LOT I suspect, so investing in this cool piece of kit means you won't have to worry.