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Males have much more "Exciting" fins -- flowy and dramatic, and very brightly colored. The female is smaller, with much more modest fins, usually not as brightly colored.

and they aer brighter and that is how you tell
Males have long, flowing fins and are bright colors. The females have short fins and are usually dull colors. Also, sometimes the female is smaller.

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5y ago
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12y ago

You can tell a boy by looking at his fins; they will be long and have bright colors. Female fins will be small and with less bright colors, but females can have very bright colors so, it is better to tell by the length of their fins.

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13y ago

You know if a beta is a girl or boy when one the girls are smaller than the boys. Also because the boys are more colorful than girls.

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11y ago

female betta fish have shorter fins and tails if u go to Walmart and ask the for one female betta fish and one male u would see a big difference

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Q: How to know if a betta fish is a girl or a boy?
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Yes.


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Boys have more colors than girls....THE PRETTIER ONE


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A girl Betta is dull and not as pretty as the male. But, a boy Betta is colorful and pretty to attract the female mate.


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It's all in the tail. the males is larger and longer and the females is shorter.


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No, they are fighting fish. They will kill each other no matter what sex they are.


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Depends on the kind of fish


Can boy betta fish get pregnant?

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