My 12 day old chick has a huge crop full of DRY chick starter crumble. Her crop is so full I can literally see through her skin to her crop. It is dry crumble. She was fine earlier today but tonight it is huge. I removed the food and the straw from the brooder and left them on towels with just water and a bowl of sand/grit. Is this sufficient? She looks like she could pop. My other chick has a semi full crop but it is wet so I'm not concerned. Can they be left overnight with no food? What do I do if I can't get her to drink? Should I leave the sand in there? Thanks in advance.