Bloated zebra danio

[mermaidguppy]

Since I got my tank a few months ago, one of my zebra danios had been so bloated! Today it looks worse then it has. I'm pretty sure its a female. My tank is 30 gallons, my other danios aren't doing this. Does anyone know what it is? Thanks

 

[Fibsog]

Is it a bladder infection? Or maybe a very pregnant danio?

 

[courtanee]

Hm couldn't tell you what it I'd but try feeding boiled peas and (I'm not sure how much) putting Epsom salt in there. It could be constipation both help as laxative