Personally, I would be giving water only and be harvesting in the next 10-14 days at most, unless you like/prefer heavy sleepy dope, then its up to you how long you let her continue on her journey towards death with enhanced THC degradation. I prefer to get high; not smoke something that makes me yawn/fall asleep. This "sleepy stone" happens once the flowers have passed their peak and more THC is being broken down into CBD and CBN, amongst other compounds, than new THC is being produced. Hope this helps.... Organoman.