I am going to start raising my own mealworms. I know wheat bran, oatmeal is some of the best things to feed them. I just need to know what size of mealworms to get for treats for my chickens. Should I get small or medium. I read awhile ago chickens should only get the small. Is this accurate, if so why? I want to breed them to sell too. Also, how long is their life cycle? Will I have to keep replacing them to keep breeding. I heard you cannot let them inbreed for too long. Is this true too. Thanks in advance!!