If you are still worried about your clones I would spray the inside of the dome with a fine mist (my wife got a small blue snail for my garden at dollar tree). Any way I did this and dipped my clone's rockwall into water (only if dried and sometimes even if it feel wet to you it might not be to them so fill a red solo cup! Sorry.. And dip them if it goes down you did the right thing. Long story short fuck humidifiers shits a waste if money.