The deficiencies seem to have stopped getting worse, so me not using all 3 parts of the feeding "package" was the problem.
The buds are getting fatter and its getting more crowded in the box, so I did so defoliation and tried to get light to more of the lower buds.
@Chilipadi, Yes I did for a few feedings (Biobizz calmag) but I now think that was not the main problem. It turns out it was caused by me not using all 3 parts of the feeding (only 2). It seems to have stopped getting worse since I went back to all 3.
@Chilipadi, Thanks for the tip, but I do not think so. Its the same light I used for last 2 grows, where the canopy was even closer than it is now, and this is the first time I saw these problems.
@minigroww, yeah been there too.. i grew soil too with lots of problems then went pure coco with only floranova and boom 100-140gram per plant everytime, only have to correct the ph to around 6.1 and yr golden
@Chilipadi, It seems to be. All of the buds on mine started to foxtail around day 50. If you look at the strain page here at growdiaries (growdiaries.com/seedbank/fastbuds/lsd-25) I think you can see foxtails on many of the pics.