no preflower just that all the top is blocking all the light coming to the branch. the plant had been toped and all the node that grown behind the top canopy is having fan leaf block other node behind it on the same branch...this happen to every branch i mean to the point it so bushy...ill take some more pic tomorrow
fan and water leaves are basically solar panels that give the plant energy....your plants gonna need a lot of energy once it starts to flower...if anything trim from the inside out a little bit every day...