We are on day 18 and I have prepared my incubator for hatching. My old incubator must have some sort of crack on the bottom because the water leaks out of all areas (still holds the heat just fine) so throughout incubation I just used a couple of bowls of water to keep the humidity where it should be. Obviously for hatching I do not want bowls of water in the incubator so I have several wet paper towels and several wet sponges in the water troughs underneath the grate. The humidity has been pretty steady between 64% and 65% since last night. Is this high enough or should I add a couple more paper towels to boost it? I wasn't sure if it was worth opening the incubator for. I want it to be good for the weekend...