Sorry RD had to derail your thread into yet another fish food debate OP but the answer is that there are ways to enhance your fish's coloration that you can control. Again, water parameters/quality, dominance, and finally diet. Most effective bang for your buck food would be Tetra Colorbits and if you want to enhance the greens/blues add some food that contains spirulina.
This was never about any kind of fish food debate, and the only person attempting to make it into one has been you. The OP asked a fairly specififc question regarding
food, and its role in the overall coloration of a fish, and I have attempted to answer that specific question to the best of my ability.
The fact that you equate "color" with quality in a feed, or what's better, or best, or offers the best bang for your buck again shows how little you understand about this subject. A very low quality, low cost, fish food can potentially color up a fish to all of its natural glory, and well beyond. Hence my point in referencing those foods that utilize massive amounts of synthetic color enhancers such as Carophyll Pink, a very low cost ingredient compared to a natural form of astaxanthin derived from micro-algae, such as Cyanotech's Naturose.
Yes, Tetra ColorBits will color up a fish, but if one takes a close look at the raw ingredients it becomes fairly obvious how they do that. I don't think those fancy colors are coming from Soybean Meal ....... Wheat Germ Meal, Wheat Flour ...... Corn Gluten ........ Feeding Oat Meal ......... Potato Protein, or Wheat Gluten. Yet those are some of the main ingredients listed by dry weight that make up the bulk of that formula.
Looks more like a recipe for pancakes, than it does something that someone should be feeding their fish.
Thank you to Ryan et al who have attempted to keep their comments, and this discussion on point.
Please don't feed the trolls, because a few idiots always show up in these types of threads.