I acclimated by floating for 15-20 minutes to temperature acclimate, then added small amounts of my DT water to the bag, 5 minutes apart, 3 times, then put the clam into the DT, never touching air, and burped it. Neither of them slowly died. The first one that died was fine in the morning and dead by the evening. My second one that died looked strange yesterday morning and then was gone by last night. And it was just as healthy looking as can be yesterday!!