dont know if anyone has answered this yet but yes you can take a clone from the state your plants in. ive had a badly treated mother because i broke an ankle and couldnt care for her so someone else did. anyways the mother got way to salty and the soils buffers broke down causing the soil to be way to acidic for veg state. anyways i had to take cuttings off her to keep those genetics, they were real bad looking and they cloned no problem. as for that suppose to be defieciency, i honestly dont think there is one. maybe just a wind tip burn or somenthign. but your plant looks really great.