I took the turner out yesterday and filled the two appropriate reservoirs of the plastic tray with water. But I am only getting a humidity of 61%. SO this morning I took out the vent plug and put a little water in one of the other troughs in the tray. What is the ideal humidity for these guys? I heard between 65 and 70% relative humidity? Would it be ok to open and put in a sponge next to the eggs ? I know I am not supposed to open the bator from now til hatch but I need to get the humidity right too... What do you think? I have a Genesis 1588...