Female Swordtail or Molly?

[Fishyfriend09]

Hey guys, i bought this female fish a few months ago as a swordtail but have been having doubts about it ever since as my male sword would rather chase the other female and never bothers about this one, could she be a molly or is my male sword just picky?

 

[Lowryder]

I am going to say molly.

 

[Fishyfriend09]

What makes you say that? the way she looks or just that my male sword isn't interested in the least?

 

[Lowryder]

It has to do with the fins, swordtails have more squared fins whereas mollies have rounded fins. From what I can see if the tail leads me to believe its a molly.

I could be wrong though.

 

[Aquarium1]

Looks like a swordtail to me. Google female swordtail and female molly, and you might get a better idea at the differences.

 

[logansmomma1228]

I don't think it would matter too much what it was whether the male would chase it or not, mollies and swords have been known to interbreed.