I almost did the same thing when I stocked my scuds a couple weeks ago. They came in a sealed bag but I opened the bag so that I could introduce some pond water a little at a time. I would let the bag float in the water by my aerator for several minutes and then open the bag and introduce a little pond water. I tied the bag back shut with the rubber band and put it back in the water to float again. Well I didn't tie the bag shut tight enough. While I was killing time the air was leaking out of the top of the bag and the bag was slowly sinking. When I looked over toward the bag it was gone. I ran over to find out what was happening. The bag had lost almost all air and was just about to be swept under the ice by the aerator current. I grabbed it just in time. I could just see after having bought these shrimp, hauled them four hours, and worked to get them into the pond only to have them sink and wash down under 18 inches of ice. I would have been sick.
