
As soon as we started ours onto 'solids' we had a shallow dish of water in the box. But to be honest, I never too much note of how often and how much they were taking. We began weaning using warmed goats milk, with a small ball of raw lean mince once a day (the mince - it was tempting to give more but too much can upset immature digestive systems). That meant they were having liquid, especially as early on, they were still taking milk from mum. By 6 weeks however, mum was off them other than with some mums, they still tolerated going in to clean up, and allow some suckling, standing up. However, once she felt their sharp teeth, she wanted OUT. When the puppies were still tiny, I didn't leave water in overnight, even with just a shallow dish, for fear of 'drowning'. If you are concerned about dehydration, you can always do the testing test. But somehow I'd think they'll be fine.