the 2.5 ft cutting i purchased back in the end of July or so is doing well. it has added 3 new leaves recently. should i take this as a sign that it has rooted? also how hardy is this species? its in a 6 inch pot in a large clear bag under some 4 ft florecent lights. about a month ago i noticed some gray mold forming on the leaf stems so i figured i better open up the top of the bag because the lil holes in the bag werent providing addiquate air circulation. being that its sitting by my bedroom door its been easy to remember to keep it moist and the mold is gone now.it still has the bag around most of it but the top few new leaves are coming out the top. our house has been dropping down to about 58-60 at night and it and my new bongso are absolutly loving it. is it possible that it will grow fine as a windowsill nep?