So I recently acquired a pretty close to completely white betta and want him to stay that way. I normally feed my boys NLS, but it has "color-enhancing" properties (it has Spirulina and beta carotene). After a few months of being fed on this my cellophane has developed a red tint to his fins. I don't want my white plakat to do the same. Are there any high-quality betta foods that don't have "color-enhancing" properties?