Saulosi: Male or Female

[MapleNeil]

I'm finding saulosi to be really tricky to determine the sex. I vented these ones so now I know for sure. But I'd like to hear your guesses:

 

[Dallascowboys16]

I'm finding saulosi to be really tricky to determine the sex. I vented these ones so now I know for sure. But I'd like to hear your guesses:

I'm guessing the top one is a subadult male and the one on the right is an adult female. I am going to go ahead and assume I am wrong though haha

 

[MapleNeil]

I bought 8 that were supposed to be female then they all started turning blue when I got home. This has happened to me before. So I vented them and most if not all of them are female, including the big one with dark stripes.

There is no male in their tank yet so perhaps a female fills in as the leader in that situation?