If you follow GH's new schedule in the "Drain to waste" expert section, the expected PPM's are between 600-800 ppm for almost every week of the program. This is based on using the nutes at full strength with RO water.
I do use RO and in fact the PPM's land in the range GH lays out. IS this too weak of a solution for medical strains if you are following a feed/ water/feed schedule???
I use 5 gallon pots with Pro Mix HP.
I do use RO and in fact the PPM's land in the range GH lays out. IS this too weak of a solution for medical strains if you are following a feed/ water/feed schedule???
I use 5 gallon pots with Pro Mix HP.