Welcome! Glad to have you here, and I agree with my good friend @lazy gardener congratulating you on being well prepared! Yep, take that food back!
You want the Apple cider vinegar "with the mother", and it will say so right on the bottle. Most people use Braggs, but I think that's because it's the most recognizable! Personally I didn't use it. I didn't use any of the things that we are "supposed" to use for chicks, like probiotics, electrolytes, and other additives, but I did rely on NutriDrench to give a quick boost to stressed chicks. No matter what you choose to do, be sure to have fresh, unaltered clean water available to them as well.
And there is always someone checking on the Mama Heating Pad thread, despite how long it's been running, to help answer questions about MHP and alleviate concerns. We'd love to have you!
http://www.backyardchickens.com/t/956958/mama-heating-pad-in-the-brooder-picture-heavy-update
You want the Apple cider vinegar "with the mother", and it will say so right on the bottle. Most people use Braggs, but I think that's because it's the most recognizable! Personally I didn't use it. I didn't use any of the things that we are "supposed" to use for chicks, like probiotics, electrolytes, and other additives, but I did rely on NutriDrench to give a quick boost to stressed chicks. No matter what you choose to do, be sure to have fresh, unaltered clean water available to them as well.
And there is always someone checking on the Mama Heating Pad thread, despite how long it's been running, to help answer questions about MHP and alleviate concerns. We'd love to have you!
http://www.backyardchickens.com/t/956958/mama-heating-pad-in-the-brooder-picture-heavy-update