How to sex guppy

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looks female. Squarish chunky body and a darker patch above the anal fin and no gonopodium.
 
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I don't know. She isn't about to give birth, but if she's been kept with a male any time recently, she will be soon. They can have multiple pregnancies from one mating and they don't always get pregnant right away.
 
I believe they can store sperm for upto about a year?
 
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