first pic is slight nute burn .... just a guess ... but the leaf curling up is probably really trying to curl down ( claw ) and just got bumped up if you run your fingers down that leaf it will probably claw down ...its just the plant letting you know it has enough nitrogen border line too much .... second could be a lot of things ...... possibly a air movement issue ???? you have a problem with fungus gnats ?
whats up with the fan leaves ?? youre losing one a week ??? what do they look like ?
No fungus gnats ,given the heat increase ,humidity has been in the 30's ,lately
As far as nutes go ,I went for 1/4 -1/3 strength at most.
My latest watering was 1/2 strength ,for a first time during this grow.
I admit using an additive which contained N ,from Plagron(Plagron Bloom).....it was a 4-2-2 NPK ,about which was said that it could be used with every watering ,during flowering period.
I used it every 2 waterings.
Also used a separate PK 14-15 ...an additive from Plagron... which can be used together with the Plagron Bloom ,as recommended on the label........... ,once every 2 waterings also ,.
Between nute waterings I used plain PH'ed water.
The fan leaves I'm losing show the classic N defficiency (according to what I saw online) ,they start yellowing like the one from the pic .....although sometimes it doesn't start at the tips,,,,,, , ,.........the lowest ones (single blade) had yellowed first ,around day 30.Then ,I lost the 3-bladed ones ,a week ago ,and now ,the 5 bladed one is starting to be affected ,as you see in the pic.
Strain is Short Stuff ,stated to finish after 60 days from germination.
PS
Tried to run my finger on the "curled up" leaf ,and it hasn't "cupped down"