Hi all need a bit of help!!! (as usual!) here it goes a bit of background: I'm using GHE Bloom+Micro in conjunction with R/O water and the Lucas formula which is set at 1.9 EC i know it is meant as a guideline with some strains needing a lower EC. I've had a few problems in the start of the grow with under feeding during veg by the time i realized i was nearly ready for flower ( ) which Lucas reckons can cause deficiency's in the plants not sure if this is relevant but just in case i thought i better put it down. OK the problem is on the last week and half the EC reading has rose before each time "add back" to top up the reservoir (it should stay the same or decrease) so I've been lowering the target EC each "add back" gradually from the recommended 1.9 it's currently at 1.6/1.7 I'm on the start of the 6th week (on a 8 week flower) and my main worry is should i keep lowering the EC (as the plant needs) or in this late stage of flowering should i have a higher EC before the final flush? thanks for your time slamwa