Many feeds are thrown together for names sake. No one feed will give you the best outcome and most are there to give you a quick fix. Variety is the best choice, for longevity, overall appearance, color, and development. I have tried this method for many years and have had better results over time. Yes, it will take longer for them to development, but they develop healthier than the quick fix feeds that guarantee a change in 3 to 7 days. My suggestion is variety, especially if you want to keep you fish around for many years instead of one year or less. I do believe this is the main reason for so many problems breaking out recently, many people like the quick fix and don't have the patience to wait a little bit longer. Many of the master breeders can tell you that they feed simple growth feed and nothing enhanced.