White Lump On Betta Fish

I woke up this morning and Taco has a white lump on his underbelly... looking back at the photo from yesterday it was there but barely noticeable and now it’s bigger... I’m a bit worried... anyone know what this is?

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Throger · 26-30, M

I was told that that they never made tags for females that they all say males. Is it entirely possible my Taco is a girl..? I hope it’s neither a tumor or ick... I’d feel really bad if it was...

Zaphod42 · 46-50, M

@Throger No, female bettas are usually brownish and very plain looking. Although you can occasionally fish a flashy female, they're usually clearly marked as such and priced much higher.

Throger · 26-30, M

@Zaphod42 gotcha. I’ll try a freshwater forum... I’m a bit upset since I’ve only had this fish for a day and I tested vigorously before putting any fish in there