I've been trying to think of a way to load food with more vitamins, like gut loading with crickets for reptiles. I know they make liquid vitamins, what vitamins are beneficial for both growth and color? I just had a random idea, how about mixing certain foods in a blender, if you have a good enough blender you don't mind getting dirty. Like a catfish fillet, tilapa fillet, and some beefheart, put small amounts of powdered vitamins in there, some water and something else to build substance, blending it into a paste, then freezing it in ice cube trays? Anyone tried anything like this?