Here is a list of valid Aphanius species
Aphanius anatoliae anatoliae
Aphanius anatoliae splendens
Aphanius anatoliae sureyanus
Aphanius apodus
Aphanius asquamatus
Aphanius baeticus
Aphanius danfordii
Aphanius dispar dispar
Aphanius dispar richardsoni
Aphanius fasciatus
Aphanius ginaonis
Aphanius iberus
Aphanius isfahanensis
Aphanius mento
Aphanius persicus
Aphanius saourensis
Aphanius sirhani
Aphanius sophiae
Aphanius stiassnyae
Aphanius thermarum
Aphanius transgrediens
Aphanius villwocki
Aphanius vladykovi
After you determine which species then you need to know the location.
I expect they will need hard water and added sea salt.
I know the Ap. mento males can be quite aggressive, but yours are not Ap. mento.
ATB
C