I'm beginning to think the color might have something to do with the 2 UVB lights I have in there. I think they are 20W 10% UVB and I leave them on during the entire light cycle. I figured what the hell; I'd back it off if they showed stress. But now the Hawaiian Snow I have under the lights by itself is developing yellow then small spots of purple on the most exposed bud tips. I'm going to back the UV light off them a little...
Anyone else heard of this before?