So, I know this is in the wrong place but I don't know where else to put it, and I thought the situation might be similar to a BP, maybe.

So. I have two little Smooth Green Snakes. Today I noticed one's through is extremely puffy. He is eating fine and drinking fine, but it doesn't look good at all. I'm wondering if maybe he swallowed some dirt? they do have about two or three inches in the bottom of their little tank.

Here are some pictures of both of them, for comparison. keep in mind, these guys are maybe three or four inches long.


The sick guy:


And the healthy on for comparison:




Sorry again for putting this in the wrong place, and I hope someone has an idea of what this is. I'd love to take it to the vet, but he's awfully small, so I don't know if too much can be done. I did manage to open his mouth carefully a bit and didn't see anything, but it was really hard to tell.

Thanks in advance