You've overcomplicated everything.. Mixing in your powders and liquids and all sorts of stuff... It's hard to say where you are really sitting other then saturated.... Feeding Cannabis is not about 1500 ppm for 8 weeks during flower.. This is like baseline starter information. The 1500 ppm feeding is for healthy strong big plants.. If your plants not healthy maintaining high intake just continues to throw off the balance. Your better to go like 1/5 a regular feeding and waiting to see what she does with it.... A lot of guys are constantly fighting with their plants.. Constantly adding nutrients and ph buffers.. And all it does is add intake and make for poor Cannabis. There is a reason why experienced growers say less is more.. Because less is actually more.