Additional dosing of Aminos and Trace elements is not a requirement of good coloration in SPS. This is in fact a myth that hobbyists keep perpetuating. There are many long time reef keepers over the years who have successfully grown fully colored up SPS coral colonies by adding nothing other than fish food and 2 part + mag to their tanks and maintained stable water parameters with water changes.Proper water chemistry, good lighting, adequate coral feedings, amino acids and vitamin supplements.
Photoshop helps too
http://www.advancedaquarist.com/2014/2/myths