Lemon Nigerian

She seems to be flowering a bit slower then my previous photoperiod plants, but we're getting there. Lots of lower leaves are becoming brown and wilting, which might be a phosphorus deficiency? Will bump up the P concentration in this coming week to see if that helps. Height is still my biggest enemy. Will likely let my pot rest in the drip tray instead of ontop of the elevated rack. This should give me a couple more inches of vertical space.