Not nearly as fast as some of the others, but it helps that I never stunted its growth with a small tank. It went from a 40 gal @ 5" to a 150 (72L x 20L x 24H) to a 240 (96L x 24W x 24H) and now a 360 (96L x 36W x 24H).
It was only eating live blackworms when i got it. converted it to live nightcrawlers and slowly introduced shrimp and tilapia. Then once it was eating those normally I got it to eat pellets. A varied diet is the way to go. He gets the same as the bass. Pellets -> Shrimp -> Pellets -> Tilapia repeat.