I usually wait until a seedling has at least 4 fully developed trap leaves before lowering the humidity.
Grand Hotel... always the same. People come, people go. Nothing ever happens.
I used to open them up by day and close at night, as a transitioning tool. It's kind of a tossup between humidity and light.
Ok I see I will test that and open them slowly anyone have killed there plants completly with being to fast on this ?