Identifying if betta is male or female.

[kymob]

I started a sorority tank and bought 9 betta girl babies. But I think there are some boys. Below are 8 pictures of all my betta babies. Can anyone tell me if you see any males? Thanks

 

[Ghostly]

hard to tell now as they are still young but number 2 definitely looks like it could be a boy. have you checked for egg spots yet?

 

[Cinabar]

2 is likely a male, and 1 might be male also. Hard to sex when they're young though

 

[BirdBear]

#1, #2 & possibly #5 all have longer dorsal and ventral fins that are frequently associated with male betta (depending on variety). The International Betta Keepers Association has a downloadable pdf to identify the varieties of betta, and a guide to determine if you have a male or female (plus betta competition guidelines and standards for judging).

I am most familiar with CT and can identify the sex of young CT. Not as much practice with other types.

None of them look old enough to check for the egg spot yet, however.

Are they showing aggression or staking a territory?

 

[kymob]

hard to tell now as they are still young but number 2 definitely looks like it could be a boy. have you checked for egg spots yet?

Yes, only one fish has egg spots 3 fish have been killed. I separated them all right now.

#1, #2 & possibly #5 all have longer dorsal and ventral fins that are frequently associated with male betta (depending on variety). The International Betta Keepers Association has a downloadable pdf to identify the varieties of betta, and a guide to determine if you have a male or female (plus betta competition guidelines and standards for judging).

I am most familiar with CT and can identify the sex of young CT. Not as much practice with other types.

None of them look old enough to check for the egg spot yet, however.

Are they showing aggression or staking a territory?

I have another sorority tank they were a little older and you could the sex. I bought the others by a breeder and these at Petco. I hate seeing Petco sell them so young. The introduction went so smoothly and have a ton of plants in there for hiding places. They have been together for 3 weeks and always would for aggressive fish. I think 2 as well. Number 2 is crazy always swimming in front to get feed. Thanks for info it will help