

Even a 14lbs northern lm is rare. I wouldnt expect it to gorw more than 8lbs in an aquarium, with a length of about 24." Any lm over 10lbs is considered a trophy by most fishermen, and in states w/ the northern strain, a 5 pounder is a trophy.Is it a northern strain largemouth or southern? The sub-species from the south grows much larger. I doubt you would ever find a northern largemouth with a weight of 20 pounds, more like 14.