I think my hen has an impacted crop. While I am dealing with that, I want to make sure she is not getting dehydrated. She feels very thin and just sits there with her eyes closed. She is drinking and eating still. I have taken food away and given more water. Being properly hydrated is important. I was going to give fluids just under the skin as you would do with most other animals that are dehydrated. Would I need to use saline or can I just inject tap water per se? Thanks for any info.