

Wanted to confirm their species, mine seem darker than others I have seen, wondered are there variances like this or are mine possibly a different species all together?
Hopefully these pics are good enough to tell from.
Thanks for any input,
Guestimating their age at around 11-12 months?
I got them at just over an inch about 9 months ago and they appear to be about 3 inches now (2 larger 1 a bit smaller).
Was hoping I have at least one female here and want to read/look/learn about how to best breed them as I have many tanks I want to put some in.
Thanks for any input!
Bill ;)
(update) Added a better closer side shot, these guys are FAST!