Jack Herer Auto with Black Dog LED

Week 8 I saw the flower not growing as fast as I have hoped so on Day 55 I switch from 18/6 to 12/12 LED. My #4 Jack Herer strain is not showing any pollen or sacks, but its a Mutant with no bud formation. Perhaps the 12/12 will do something for this Mutant! Day 50 Fed 12 Liters of RO & the Advanced Nutrient at 37% of recommended. Day 53 I decided to up the feeding to 18 Liters of RO switching the nutes from Voodoo and Big Bud to B-52 and Big Bud per Advanced Nutrients feed chart. I am keeping a very good eye and inspecting my Mutant Jack Herer in hopes that it starts budding in the 12/12 lightcycle. The other 3 Girls are growing slow. Not sure if it is the Strain or Advanced Nutes.