we bought three 8 week olds about 2 weeks ago. when we first got them, we noticed one had bloody stool (red stool, the entirety was consistently bloody, not just little bits). we immediately ran out and got 'Sulmet' which we administered to their water for the 3 days as listed on the bottle. All stool samples seemed to have cleared up completely. We still don't know -which- of the three it was, despite sitting with them trying to figure it out, they have yet to learn how to poop on demand. Anyway, this morning (so, about 2 weeks later) the bloody stool has returned (still appearing to be only one of them). We put more Sulmet into their water supply, but i'm wondering if there is anything else we should do/be doing. Thanks for your help!