my 2 latest peeps, brahmas both, have had problems and one died this morning (within a few days of bringing them home) - the other's not looking so hot either. They were the ones i thought had the best chances - vaccinated and from a reputable store, but I don't know - there's quick, labored breathing (not from the heat lamp) and poop that looks mostly like clear water with a little, teeny bit of white and brown in them. I'm thinking the other won't make it sadly. I have my fantastic five who are doing just fine and are a bit older, and i've kept them separate from the new chicks (mostly cause of age) but i'm going to get new chicks and put them in the same brooder. I'm wondering what i can use to properly sanitize and clean out the brooder for the new chicks when they come? also - this is the first time i've put vitamin supplement in the chicks' water - is it possible i've ODed them? Or something?