Thanks, a few I ordered online as males have turned out to be females and the electric yellow never developed black stripe makes me think it's a hybred. The Acei were born in the tank so I knew some of those would be females. Now I'm just going let the fish do what they do and see what the fry end up like.
To be safe pay for the larger fish but in opinion they shouldn't offer males as a option if they can't tell the differences yet. I can understand accidentally sending a non Dominate male the looks like a female.