Northern lights Auto-fem RQS, spacebuck

Nutrients: Fox Farms Week 8 at 1/2 strength (up from 1/3 strength) Sunday day 49: Just watered with some ph'd water that was bubbeling for a while Monday day 50: nothing Tuesday day 51: watered with 1L of nutrient solution. PROBLEM: Light was slightly too intense (leaves were praying but tallest cola was light green and highest leaves were browning on the tips; bottom of the plant is dark green so don't believe there are any nutrient problems) so I turned down the power. Pistils are starting to turn from white to orange. Wednesday day 52: nothing Thursday day 53: 1L of water+nutrients, looking good. More trichomes are showing up on the sugar leaves and fan stems, smell is getting a bit more potent and Friday Day 54: nothing, just opened it up for a look Saturday Day 55: clipped out 5 smallish fans between to keep some air moving 1L of nutrients PROBLEM UPDATE: other colas have passed the tallest mentioned above and all seem to be getting darker. kinda hard to tell as leaf tips will remain brown, but leafs turning light green seems to have stated to improve.