I would take the humidome off immediately & dry it out. Should the clones appear to be drying to dehydration, then lightly (lightly) mist them every hour, then every 2-3, then every 5-6, then every day, until no need whatsoever. This is labor intensive, well rather must be attentive, during the first 24-36 hours of taking cuttings. With this misting process, no need for humidome at all = no DO/infections. This is even in very, very dry climates. Would mist w 1 drop physan 20 to 500ml RO water. Actually easier & w better results this way. Best brah... you can actually halt the further progression of rot assuming you dry it out at once. Best brah!