sorry im not english , u mean lack of posphorous ? they are purple!a purple leaves usualy mean a phosphorusb shortahe
What lime saidvery few fan leafs and only on 2 out of 4 plants , i just read that it could be
Molybdenum deficiency
how can i correct that ?
edit : >"Molybdenum deficiencies are usually present when there are also insufficient amounts of sulfur and phosphorus, so you might want to take a look into that as well. "
how close to harvest are you?
i always aim ph for 6.2 and 6.5 , i planted this strain last grow and used 50% nuts strenght and didnt saw that !! this grow i was using 40% to prevent tip burn and this happens :///////
The only time I’ve heard about molybdenum being an issue was regarding agriculture in central Australia.I'm going to side with lime too.
Molybdenum is needed in such small amounts, it's rare to see a deficiency using fertilizers.
The more likely chance is low ph locking out something like phosphorus. Not to point it out, though there are signs suggesting it's the case. (tip burn and claw)
I wouldn't be overly concerned about the purple leaves. If the plants are healthy, purple leaves almost always are too.