New growth causing lack of color?

[jason604]

During the past 1-2 months my green hulk colony started to have a major growth spurt. I just recently notice the main beaches losing all it's color and is a lot thinner than the new growth. Is this because it's growing so fast and blocking all the lights from the branches below? How do I counter this? Take out clippers n cut off all the new growth or just let the thing be?