Yellowing fan leaves

Hello all. This is a pix of the lowermost fan leaves on one of my babes. Still not showing sex...but I am seeing males and removing all of them fellers as they appear. Shes a Nirvana Northern lites X Haze, from seed, at about nine days into 12/12 light cycle. I just recently...whin the last 5 days, transplanted her to a better pot, a 10 inch pot...we think. Shes about 22 inches tall and in a home brew potting mix with bone meal and perlite, as well as some worm castings, I even added some grow pebbles in the mix just for fun. I'm using a 400 watt HPS and 4 CFLs in about 15 sf of grow space. Started tiger Bloom in day 4 of flower...which means that the leaves pictured are a result of trans plant shock or...the Tiger bloom...Please...your thoughts.

looks like overferilization

Is it not kinda late to be transplanting?Plants are stressed when they are re potted..Also perhaps too much fertilizer :pimp:

It's common for lower fans to turn yellow and drop during the flowering cycle. :thumbsup: