The one hatched duckling was walking on the plastic sheet/thermometer. So I took it out quickly. 5 min later I opened it again and shoved that back inside because I realized it is how the temp is regulated. Opened it twice more quickly to add water since I had humidity loss during the other openings. I didn't see any eggs trying to pip before all this opening BUT after all the opening I checked with a flashlight and see definitely one possibly even 2 with pip cracks... Have I killed them with shrink wrap? It really was fast open/ close every time. Also that duckling is snuggling with the plastic sheet thermometer with stapled wires that came with lg forced air incubator.