just got some of the new 2part formula, so far so good after 16 days in 8gal dwc. ph is mostly stable and slowly drifts up over the course of 5-7 days. i ph back down 5.7/5.8 and let it rise until 6.3/6.4. i am also running bennies in the res. it still doesnt dissolve completely, like 99%, but i...