My 5 week old chicks have had on and off bloody poops the last few days but more so the last 2 mornings. Not sure if it is all of them but it is several poops in am. They seem to be acting normal but after much research seems I should go ahead and treat as I am new to all this! I just bought Corrid powder and wanted to confirm with anyone before I give it. 1 tsp powder to 1 gallon water? Do I not change the water again today or just make another mixture if I do? Thanks! On a side note, do they need the grit yet if they are still in garage on pine chips only on chick feed and the occassional fly or bug going by. Thanks!