it’s only one centremetre deep. But if there are baby hoglets, it could be a problem. It’s not quite level, so it’s deeper at one end – (as in deep about 1cm), and barely any water at the other end. I tried to make it level, but gave up in the end.
And because it’s not level, when more water comes in, it overflows at the deep end – so the water never gets more than 1cm.
So I think it will be ok.