So far so good. I assume that if I've been drinking it for 30 years it was safe for the plants. I would like to start completely over, but my mothers are exhausted. Took 40 cuttings from 2 plants over the past month. They are flowering pretty strong right now. The first 20 I cloned using vermiculite/perlite mix. Worked great, once they were rooted good I moved them to a a areoponics tank (low Pressure). Ofter 4 weeks they had very little root growth so I put them back in soil last night. I was hoping that starting them off in hydro would give better results. I won't try to get into my other problem with the areoponics. I did not know what I was doing, and my PH would jsy keep rising to 7.3 and above.