I've just taken one of my soil plants and put it into deep water culture. when I plucked the soil - caked root mass from the perfect soil mix, and thinking in terms of the age old saying - "in for a penny; in for a pound", I cut the perfect root mass short, washed it clean of soil, then placed the perfectly healthy and well looked after plant into the deep water system I had just purchased. I had got the ph, and nutrient level right, so those avenues of disaster were at least closed. After awhile the plant started to droop, and I began to think it was on its way out! But when I came back to take a peek at the condemned plant, I was pleasantly surprised, as it had REALLY taken off!!! Iā??ve never seen anything like it! However, this was quite short lived phenomenon, as around six hours later the plant began to droop again, this time it got progressively worse! Now I have what I think is a dying plant on my hands! I donā??t think there is anything that could happen that might save its life, apart from taking cuttings, which I have already done. Interestingly, and despite me making sure the ph was 6.4, the ph had changed itself to 7.1 overnight! The only thing I can think of is that maybe (despite the high aeration achieved with DWC), the fact the roots had been cut, and the fact that the ph had become neutral (making it easier for mould and germs), might mean that the roots have become / are becoming rotten before my very eyes!!! Iā??m sure there'll be a lesson learned when this is over. By the way, on the topic of water level, the level is not too important (medium half submerged, water lowered slightly to achieved higher aeration after roots emerge), as the water medium, in which your roots grow in is aerated, so roots are supposed to live in it, however, if that water didnā??t have a bubbler in, the roots would die.