I u se the 20% powder. In the past it worked like a champ. Already today the blood in gone. bUT she still has a bit of paralysis working. She is eating and drinking, so she's a fighter. Only time will tell. This is exhausting. I have 10 more chicks and I'm almost afaid to do tgeir morning and afternoon checks out of fear of who is next. Gotta make it to a year right? Just 10 more months to go.