I've been keeping around 9.0-9.5 with great growth in my sps's. however I don't have that great of colors. Would I see a increase in colors if I slowly dropped my alk? I feed real heavy and don't plan to run a ulns so I never really planned to run my alk below about 8.6/8.7 range until recently where I've been struggling to get my acros the colors I want, which is deeper and richer as oppose to the lighter more pastel colors im getting.