i have my ppm at 750-800 for the past week since i introduced them with nutes again as they were getting flushed for a few days as the had nute burn.
but since then i have seen not one of the plants ppm come down at all, only up maybe a 100/200.
there ph is always adjusted to 5.8 and the next day it is always 6.8 - 7.0
think i have nute, any ideas???
so i have done little research and advise fro other growers and this is what i have found
The passage of water through the semi-permeable membrane is controlled by either the TDS (total dissolved solids) or EC (electrical conductivity) of the nutrient solution. So, if the EC of the solution you’re feeding is excessively higher than the EC currently in the roots(soil,hydro), the plant can dehydrate by drawing water out of the roots and into the medium via osmosis.
The best defense against nutrient lockout is to routinely monitor your nutrient solution at the reservoir topping off as needed and flushing every two weeks.
and this is from rollitupmike
and void helped by sayong that i had to make them hungry to want more nutes and to have them in plain water for a few days