Dang, I totally forgot about this thread.
So here's the thing with the Fruity Pebbles, its a piece that looks pretty awesome wherever you put it. High, Low, Middle etc its a sweet one(nutrients and flow will also change the colors)
The lower light colors are yellow, green, red, some pink, purple
Higher light colors are pink, orange red and some green
Personally I like it how it looks in the fourth photo and that is at about 350 PAR