How can I tell female tilapia apart from the males.

[Josiah Sherman]

Hello!

I have a tank with 300 Mozambique and Blues cross 8 months old but haven't seen and sign of babies. I'm think about separating some of them out but I'm not sure which ones are the males and females.

Any advice or ideas? Also if anyone knows of some training on tilapia breed I would be interested.

Thanks,

Josiah