i need help with my jacks

[xalkopx]

hello, i just bought a stocked 125 gallon tank. it has 6 jack dempseys (it was 9 i got rid of 3) 7 tin foil barbs 1 pink convict and 1 pleco. i am looking to only have 2 jack dempsy fish left, i want to move them to a breeding tank. but i need to know which 2 to keep. i dont want to end up with 2 males!! so here are a few pics. i know the big one is a male, its the other ones im not sure about. and the color seems light to me... any ideas?

 

[TankDempsey]

your right the bottom big one is a male, you said you want to breed them? i would suggest letting them form a pair while there is still this many, from the looks of it you have mostly female besides the bottom two pics, i would move out your other male and let a pair form between the remaining females and the big male. Hope i helped

 

[bobblehead27]

I agree with ^ this one hundred percent. When you allow the fish to decide, you get the best fish possible (genetically speaking, less deformities and so on)

 

[Redbellypiranha]

the very colorful ones are males, and the not so colorful ones are females