Hi, I think my sister's betta(and possibly one of mine) may have fin rot. :-[ I don't believe I've ever dealt with fin rot before(I was told a previous betta had it, but from what I've read, I'm starting to believe he didn't really have it) I've posted pics of both my betta(his fins are starting to look a little ragged) and hers. I really think that hers has something. His fins are starting to fray, and I don't really think there's anything in his tank that he could tear them on. I've attatched a pic of her betta's fins. Sorry it's so bad. I'll try and put some more on later. He's starting to get a hole in the middle of his underfin. Her water conditions are . . . . . . . . .less than pristine.(3 gal. tank, w/ monthly water changes) Could someone tell me what to do???
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