Bill, the biggest YP I've caught in my pond was maybe 9-10". Certainly no monster YP being grown in my pond.

But keep in mind that I don't do any regular pellet feeding, and my YP have to compete for their food along with many other species of fish.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."