I have been researching aquaponics, and Talapia seem to be a good fish for my climate. What I haven't seen is info on reproduction. I have seen ads for breeding colonies (hybrids) which produce 90% or better male offspring for faster grow-out and to control reproduction. I want to create a sustainable system, so my question is: If I get a prue-bred strain do I have to worry about overpopulating my tank through reproduction or will the larger fish use the fry for food? I'm not worried about grow-out as I am not planning on producing a "market fish" just want to feed the family. Recomendations for a breed would be appreciated.