In the case of prefed ive come to the conclusion that just will happen sometimes ... downfall of soil so far
only real way is to flush it out from most of my knowledge would be testing the runoff for the proper ph ... I hand water making small amounts at a time instead of the gallon + amount required especially now that I'm flowering over this grow ive just come to terms that a few leaves mainly ones I've clipped at this point ever got affected this way and by the time they've gotten to flower I've gotten everything inline I use pretty much the same test kits and have had pretty good luck so far. Dunno if that helped at all but good luck
Thank you, so little and often is best way by the sounds of things, after the feed yesterday which I reduced to around 250ml each plant with some oldtimer grow feed in it, the plants perked up and I got some really good growth when I checked first thing today, so I think the soil is slowly resolving the issue it self as I've heard this is the case with plant magic soil and possibly all soil?
I've now just got to make sure I get ph level correct for the next feed
I have got a cheap soil probe, and I've been watching the soil levels come into the right range, I know those cheap ones are not much use but I have definitely seen ph change happening daily now which does suggest the soil is doing some sort of buffering, of course i could be completely wrong too.
I will do some some ph feeds in range of 6.7 area and see if I get any change in the stunted plant, but that too is still growing but real slow and then after that I will try it with some cal mag, last resort will be to flush it I think,
So like you are doing,I will try get it all in order before they get to flower, thank you for your advice, every bit helps,