No, I don't think so.Has it improved at all?
I had a betta with extream swimbladder issues and bloat. It took 2 and 1/2 weeks of fasting to see any changes in him. I didn't want him to starve so I had given him one pellet somewhere in the middle, but it was a lot longer than I expected.
Like mentioned above, what does your danio's poo look like? Long and stringy? White? If so, it's parasites and you'll have to medicate.
Are there any other symptoms?
She's bloated at only one side, if that helps.
Thank you! I'll add her back to the school.That is key info. Since her behavior is normal and she's only swollen on the one side I would pen that as a tumor. I would add her back to her school and watch her for signs of discomfort or suffering as she is unlikely to have a normal life span. She should be able to do well for quite a while if it doesn't continue to grow and may well be lucky enough to live a completely full and happy life. It'll all be determined by the rate of growth and if it continues or ceases. Pick up some clove oil to have on hand for if/when serving situation dictates the need for euthanasia.
Being danios I would lean more towards spawning behavior especially considering they did it in the morning.So, I saw some of my fish scratch its body on decor and the substrate this morning, but I don't see any white poop. Could it still be parasites?