Sorry, I thought I clarified. These are my breeders. So no eating em. I am using a heat extruded pellet right now, it works well in my automatic feeders...they are similar to deer feeders. I have read that tilapia aren't supposed to get this big, maybe 15 inches is the largest I have heard of. Mine are pretty close, if not a bit bigger. I am pushing the higher protein for increased growth, and egg production. These are my livestock, and just like a rancher feeds his breeding cows better feed, so must I. Or risk smaller production.