Forgotten cookies living soils run

so this girl is the smallest of my girls on this run. she has the same fate as the others though. so through my own mistakes I've stunted them. through over watering the living soil. Everything was smooth until flower when i upped my watering. in doing this was more harm than good. it basically washed the microbes out the soil so food wasn't being made available for the plants. so all plants showing deficiency yellow leaves brown spots purple stems etc. also only just realised the plagron light mix i used doesn't have perlite so soil is compact now through overwatering after speaking with budgetgrows on the livingsoils reddit page he advised to let my pot dry up and start feeding again basically get them through to harvest as best we can. cant fault living soils for this it really is user error. hopefully wont get worse from now