Just got back from Vets office that ran a fecal on my chicks (11 wks old) with bloody poop. They still saw coccidia, not a heavy load but the Vet wanted to treat for colitis. I've already treated with Corid 3 -4 times so I was surprised at still seeing coccidia. They said to get Tylan powder to treat. When I got home I realized I had the Tylan 50 liquid at home because I was using to give injections to an isolated chick with respiratory infection. I rather not put out any more money right now. Online it says you need to give 850 to 1400mg/ gallon. If my math is right at 50mg/ml, if I put 20ml/cc in a gallon of water that would give me 1000mg solution. Does this sound right? Has anyone else treated for this?