hi smokie, many thanks for answering my question, i am using ro water, i tried bringing it up to 10 with gh ph up, then down to 6.5, then adding calmag in my last run with terrible consiquences, the bud didnt form properly, the ec was to high and so this time im just adding calmag, to 0.4.
im more interested in why the ph raises when the ec s over 1.0, and lowers when its under 1.0 is this the res and plants telling me they want to be on 1.1?
last week if i raised the ec over 0.9 the ph lowered, but now the plants are bigger the ph raises the more nute i put in..... i imagine if i took the ec to 1.2 then the ph would start falling again because the nutes to strong?