flowering week 5

Is fan leaves a must, or can the plant grow well and thrive without them? What’s the downs and ups with removing ALL of the fan leaves? How bad is it if the plant grows with completely no fan leaves? Will it reproduce any new ones? Overall..How many % decreased in growth/yield it be...

Does this look okay for the beginning of week 5 flower? Will it get bigger?

Hey guys, I’m 4 weeks and 2 days into flowering and I watered today only to notice that some fans leaves are turning light green? Info here :- 12L pot Watering ph always 6.5/6 X4 23w 2700k CFLs X2 40w 6400k CFLs Bio bizz all mix soil Plant is like 27 “ tall Have been feeding 1.5L of water like...