turned fan leaf finger

Feb 7, 2017
This is my first grow and i am growing two plants enclosed in a small plastic bin with a small fan and two 100 watt equivalent cfl bulbs. Wondering why one of my plant's fan leaf fingers is twisted over. I have also had problems with the leaves as far as one getting some very small yellowing browning on the center of it but has been healing since I have recently started adding nutrients to their water.
Flowering, 3 weeks
Blue Lights (indica)
Dream Queen (hybrid)