One of my female swordtails has a bump on her side, as if something is under the scales. She isn't entirely swollen, its just this one spot. I'm not sure what this is, so I netted her to look at it with a magnifying glass and still couldn't tell exactly what was causing it. At one end of the bump it looks like something whitish is tucked underneath the scales. Though, some of her scales are pale in color. Any ideas on what this could be? Don't wanna lose her, she's left me charmed after having her for a few weeks.