I got a little problem with the V&B in my trial run. When I mix it up, it gives me a ph of 6.5 or 6.6 which would be great if I was growing in soil. But I'm running passive hydro hempy buckets, and I want a ph of 5.8. And it takes just as much ph down to move it from 6.5 to 5.8 as it does to...