Ok, so I've read that you take one vent plug out and leave the other one in until the 18th day and you take the other out. So I have the LG still air bator and I've had it plugged in for 4 hours or so.... My temp shifts from 98-100 and I have the hydrometer/thermometer on a 1 inch block in the middle. I added 3 teaspoons of water to the middle and 1 tsp each to each side of the big well in the bottom. Before I put it in the bator the humidity in my house was 30% and when I put it in the bater an hour later it said 20%. I put the plug back in the bator and the humidity got up to 31%. I took the plug back out an hour ago and now it says 29%. So should I leave the plug in? or take it out and add more water? Just trying to get the humidity level straightened out before I add eggs tomorrow. Thanks everyone!