So after messing with a few different bulb combos I've found that the 6 blue+ and 2 purple+ can't be beat for growth and color. I'm currently running the 6 b+ for 8 hours on one channel and the 2 purple for 4 hours in the middle of the light cycle for a boost. When all are on the look is natural and pops but I can't stand the all blue look. It's flat and washed out. Anyone run a similar set with all 8 bulbs for the majority of the day cycle? Not sure if that much purple plus would lead to algae issues.