Member of the Year: 2017 - Member of the Month: Mar & Oct 2017, Aug 2018, May 2019 - Plant of the Month: Aug 2017
I haven't used any hybrid soils yet.
I've started bottom feeding my coco pots too. Just easier. Stick the pot in a tub and fill that every few days instead of messing about dealing with 20l of run off every day.Ah sorry I must have miss read it, yeah 300 should be okay.
It's apparently so that the roots will get burn but I've grown hundreds and the only problems I have had on them is slight over watering like your info you have given.
I find that I do get some strains where I have root problems, not bad problems just not the greatest of genetics is all I can think, I have found that I would but the plants in a tray, feed them one day and bottom feed them for a few weeks after, so basically too feed, bottom,bottom, bottom too ect.