Thanks for these ideas Bill. I have a paper on LMB and tilapia that can serve as a baseline. The problem is that it is nile tilapia studied in the paper. The Mozambique is the tilapia I will be limited to using and it reproduces at two months younger age than nile do. I think if I can get a ball park estimate to begin with I can fine tune it, as you said, each year. The males vs females was something I wasn't planning to do but it is a great idea and an alternative that would greatly help if there is too many offspring growing up.
