i think this started 5 days or LESS. 1 or 2 of my chickens are pooping red blood But only 1 is puff up not eating or drinking and staying in 1 spot for the moment and the others might do the same. i have 5 chickens total and all are about im guessing 3-4 weeks old. maybe older or less. i might be missing some info but i will tell my story best way that i can. please help me with the blood chicken and ask me anything too. i feed them Chick Starter Medicated by mannapro. i dont clean there water everyday until night time so THEY do drink there nasty until night time which i know is bad too. the chicken feed have Medicated (with Amprolium) complete crumble for chicks for 0 to 8 weeks. i bought these at the store and i think this might be the cause too:Happy Hen Treats Chicken Mealworm Frenzy. like i said i might miss something so help me.