....at this point, stay with the GH nutes; you're almost done, so there's not much more you can do...what strength are you using them? organics need healthy soil microbes todo the breakdown and cycling works, which takes time,... Avoid MG soils in the future, get a TDS or EC meter to check water hardness when needed, and add RO/DI if it's very high ppm's.. pH adjust your water if needed too; don't swap nutes between organic and synthetic; get an Accurate 8 soil pH probe to check in-soil pH's instead of relying on the dubious run-off method,...