um i woke up this morining and saw that my "female" swordtail's tail was starting to look like a males is it normal for them to change sex? 
sex changing swordtail
- Thread starter losermonkey5
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What does its anal fin look like? Some fish just develop later than others. Mollies are pretty good at this.
its anal fin is pointed like a males and i read somewere that in some cases the under go a sex change and it was a pritty big female so i dont think its devloping late
What you read was outdated. Usually in these cases the fish are born with the internal sex organs of a male. You should note that fry all look female with a triangular shaped anal fin and not a gonadopodium. Not all swordtails will mature at the same apce, as I stated earlier and some will even develop their "sword" a year after they are born. Swordtails do not change sex. A lot of reef fish do, but swordtails are not marine, don't live on reefs and again, do not change sex spontaneously.losermonkey5 said:
I'm afraid swordtails changing sex is a popular myth, its simply not true, for instance you'll never see a male change into a female. Sometimes the swords develop late and you get the illusion of a sex change but thats it. Its not mother nature playing a wacky joke or anything.
yeh i had a female who had a normal anal fin but it now is pointy, and shes like 1.4 inches long! but her back fin is'nt gettin the point males have.
I bought a 2" lng female once that "turned" into a full fledged male. I read the stuff about swordtail sex changing at the time. But I think "he" just developed late.