I need a good suggestion for a brand of water bowl for the snakes. I have a horrible time with their water bowls every time I open a tub. First off, for some reason the tubs sometimes rub the frame (I think the frame expands and contracts with the humidity) and spills the water. Also, every single time I go up to check on everyone, someone has tipped a water dish and soaked the newspaper. I have to change out at least one tub a day because of this. So I need a good bowl that won't tip. Anyone have any suggestions?