Most people say that yellower/ lower K light, such as 8,000 k, is better for coral growth than higher K, such as 25,000 k. When you look at a graph showing the best colors for coral growth it is blues (and some red). Here is my question, If I take an 8,000 k light and a 25,000 k light and crank them both up to 100% blue, why is one better than the other for growth?