Pregnant platy question

[asberry2]

I have a few female platys in a tank and they've never been exposed to a male since they were born....however one of the females is developing a gravid spot....I was wondering if there was any way a male guppy could've gotten the platy pregnant?

 

[Samzter]

So did you buy them from a pet shop ? Or breed them. Because they can hold sperm for up to six months and if they've been in a pet shop along the way some where they have probably had contact with a male. I think it is possible for them to interbreed but the babies won't be able to be sold.

 

[asberry2]

I bred them myself....and immediately isolated all the females...so I do know for a fact that the platys never came into contact with another male platy....but I was wondering because there is one male guppy in the female platy tank and he chases the two biggest females and tries to show off for them...etc

 

[butterfly_koi]

Guppy and platy cannot mate with each other. Guppy is in Poecilia family and platy is in Xiphophorus family.
Sometimes female livebearers can develop a gravid spot even without a male, these are just unfertilized fry. She will either drop them or her body will absorb them

 

[asberry2]

That sounds right. I didn't really even think of her just developing one without a male.

 

[Bubbles0oO]

She may have been impregnated from one of her brothers ( check the sexes of the females) one may have become a male to continue the flow of babies .
She may also just be developing eggs for breeding. They may be infertile and will just either be absorbed or passed

 

[asberry2]

Yeah I'm assuming its just a bunch of eggs...no sex changers

 

[pocket22]

They are Livebearers. no eggs.

 

[butterfly_koi]

They are Livebearers. no eggs.

Actually they are eggs, livebearers retain eggs inside the body until they develop into fry, similar to mammals

 

[pocket22]

I know, but when they have them

 

[asberry2]

Well yeah....so its still eggs inside the fish. Two of them have obvious eggs inside of them.