Bleaching monti cap?

Yesterday I moved my monti cap into more light. Not too dramatically, but enough to see a response. It has started turning white around the edges. I'm just wondering if this is bleaching or it turning white, indicating growth. Lights are a Reefbreeders Photon 32 (peaking at about 45% on each channel) and calcium is 410 ppm, alk is 7.0 dKH, mag is 1350 ppm.



EDIT: Okay, pictures are not uploading, I'll get one up later.

EDIT 2: There we go: