I just thought this was a pretty cool article that I read. Flats are one of the fastest growing fish in the country xcept grass carp. Flats put on 2-5 pounds a year between 3 and 8 years old. Monster flats grow upward of 10 pounds a year. In some southern rivers and resivores flats have grown as much as 30 pounds in 10 years. Flats have an average life span of 20 years. Flats reach sexual maturity at the age of 4-6 years old. I thought this was pretty interesting.