Hi im a new grower this is my third grow so far is going good. but im having problems flushing them they wont flush i give them 1 week of final phace. One week of plain water ppm are 100. Still green no burn. Hydroshops tell me it my soil time nuts or microorganismos still at work.
So if thats the problem how can properly flush or stop them
So if thats the problem how can properly flush or stop them