I have not hatched ducklings in an incubator for years. The duck that was sitting her nest got off and abandoned her nest so rather than let them die I put them in the incubator. I could not find a wet thermometer to measure the humidity so am only able to measure the temperature. After 3 successful ducklings hatched today, one had it's membranes drying out. I tried to help it a little but some of the membrane was stuck to the shell and I saw some blood so I stopped trying to help it. I have wet the remaining membrane that I could see with a q tip and warm water. I placed it back in the incubator on a warm wet paper towel (should I have done that?), made sure the channels are full of water (I only had a Styrofoam incubator). Is there anything else I should do?