They don't need a drip acclimation but you can if you like.If I drip,I put the catch cup or bag in the sump,and drip straight down from the tank.So as to maintain the temp. I think dripping to an outside bucket is risky..as the temp can go down fast.With shrimp I just float the bag for 20 min..I always check PH and SG..Open bag,and add 1/2 cup of water from your tank.Do this every 15 min. for at least an hour.Scoop shrimp in net..add to tank.For safety's sake,turn out the light until they find a comfy spot.Good luck!