I am just curious as to what vitamins or supplements or both, that people use. I am using the ACV in the water, DE in the food, and brooder and dust pan. Right now they're 2 week old chicks, but I also feed mealworms, cheerios(for treats) and they won't touch yogurt--yet! I wanted to try the spirulina for when they get older around laying age, at least in the winter when they won't have that many greens due to the snow and whatnot. Any feedback would be awesome!