For myself, I would abstain from stocking TP (as forage) in the LMB's initial year unless the initially stocked LMB are >12" in length at the time of TP introduction.
Pay attention to water temp. You are limited to Mozambique Tilapia in Texas, and they go belly up around 65°F water temp I believe.
I am only going to say that you should do some research and correct this.