Ive had a similiar experience when I decided to change all by bulbs to 14k AC's. I changed 2 bulbs to 10K Ab's and left one AC 14K. It was the perfect combination for me. I feel that using 14k's with 10k's make the color of the coral come out even more. When i had all 14K's for a day or so, all my colors looked washed out.. I lost the strong pinks and yellow. If you guys dont realize, the Japanese have mastered this. Depending on the coral species and color, you need to understand what kelvin color a coral will look better in.. shallow or deep. Purples, yellows, pinks look better under 10k's... longer Kelvin wavelengths while blues & greens look better under shorter wavelengths, 14k-20k. Dont base a single users experience to a fact. There are a lot of factors that are involved.