Er well minor problems... don't know where to really start on this matter or best possible explanation !
I noticed this after first day of watering with nutrients, application rate 1.5ml fish mix, 2ml alg-a-mic & 2mil bioheaven was used per litre of water for a total of 2 litres used which was spread evenly between the 4 girls about 500ml each.
Now 2 days since watering/nutrients where applyed.
I've honestly never seen a defeciency occur on this strain in the past whilst in veg & this being my 4th grow of blue mystic !
Defs normally don't occur after watering with nutrients either... lol
So i'm going to say
Nutrient Burn which is difficult to achieve with organic nutrients even with the small amount of nutrients used... what i'm really putting this down to is the use of mycorrhizal fungi increasing nutrient absorbing abilities of the plant.
To a large degree, mycorrhizas seem to be symbiotic (mutualistic) relationships, in which the fungus obtains at least some of its sugars from the plant, while the plant benefits from the efficient uptake of mineral nutrients (or water) by the fungal hyphae. However, there can be circumstances in which the fungus is mildly detrimental, and others in which the plant feeds from the fungus.
So what i'm thinking the girls are expending extra plant energy sugars/carbohydrates etc to assimilate nutrients recently feed and rapid increase of available nutrients caused by symibotic relationship of fungi which has in turn created burn like symptoms...
If who ever reads that... god bless your brain cells as it just fragged mine trying to understanding all of that stuff
Opinions & thoughts are welcome !