HELP.. Sex of fish?? Pics

[supertechpcfix]

Hello everyone,

I am new here.. i have been maintaining a fresh water tank for the past 5 years, most recently getting more involved from a maturity level to ensure proper lives for my fish.

could anyone tell me the sex of my - adult jack dempsey - baby jack dempsey (if possible) - baby zebra african

the picture that has the 2 small fish (baby jack d and the blue zebra)

Currently my tank has - 2 jack dempseys, 1 zebra african, 2 tin barbs, brown knife fish, red oscar, adult algae eater. Had a adult red devil until it got sick and passed.. tried my hardest to medicate the fish to a healthy state.. but no success.

thank you...

supertechpcfix@gmail.com

 

[JML1997]

Large JD- Male
Small JD- Female

 

[AcsFoolMike]

The JD in the first three pics is a male.

 

[supertechpcfix]

how can you tell the baby one is a female? just wondering? so i can verify more.

thanks

 

[JML1997]

how can you tell the baby one is a female? just wondering? so i can verify more.

thanks

The spangling on the body.. Less spangling=female, lots if spangling=male

 

[cacichlids]

Both JD are male.

 

[RiverMonsterFisher]

Both JD are male.

Yes both are male!

 

[peathenster]

x3 Both males.

Spangles on the lower half of gill plates. Yes = females.

 

[Calihawk]

Both JD are male, no "blue beard" so they are MALE.

The African is FEMALE, however I have no experience with Africans or that species, but the fins have no "egg spot" so its a FEMALE

 

[supertechpcfix]

thanks everyone... i am trying to get into breeding and im learning how to tell the sex of fish.

the blue zebra does have 2 egg spots on the anal fin.. but i read that male and females will have them.. males will have 3 or more of them, and females can have 1 or 2. so we will see.

does anyone know how to determine the sex of a oscar? any physical aspects i can look for?