Feeding on pellets from the fish farm. Won't taste very good then.
I used to catch some brown trout in small cow pasture streams in the driftless areas of southern WI and was amazed at how much thicker and deeper they were per length than anywhere else I've caught them. Slow moving steams with nice undercuts and all they had to do was slide out and eat a creek chub whenever they wanted to fill their gut. No real work involved. They fought lazy too. Tried to stay in their undcut, then down and dirty much like a carp fight.