Is this Swordtail a girl or a boy

Lululime

Member
I think the fish is pregnant, my boyfriend thinks it’s a boy. Is this fish a girl or a boy?
 

qldmick

Member
guess is a girl
 

qldmick

Member
wait I'm not sure...
 

SM1199

Member
If this fish was not of a thread fin strain, I would say it's male, given the extended analfin. However, knowing that this strain produces long trailing fins, even on the analfin, it looks like a female. I see a gravid spot.
 
  • Thread Starter

Lululime

Member
SM1199 said:
If this fish was not of a thread fin strain, I would say it's male, given the extended analfin. However, knowing that this strain produces long trailing fins, even on the analfin, it looks like a female. I see a gravid spot.
Thank you! I think so too. I am not an expert, but she does have that triangle looking fin, not like her boyfriend, who is lacking that triangle looking fin. Hope I am making sense, here is a pic of the boy.
 

qldmick

Member
yep that second one looks more like a male.
 

SM1199

Member
Yes, you are completely right. The comparison photo makes it even more clear. Good eye!
 

emeraldking

Member
Well, the red wagtail (black fins) is a female lyretail sword and the the other red lyretail is a male. No doubts!
Female lyretail swordtails do have an elongated analfin as well but it's not transformed into a gonopodium. This male however does have an analfin that has clearly transrformed into a gonopodium.
 
  • Thread Starter

Lululime

Member
Yes, she s a lady and a mommy now thank you everyone. Here Is a pic of her babies I saved this morning , it was a pleasant surprise
 

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