I only have perch/bluegill and bass - no catfish or other species - I am feeding a one acre pond entirely for the bluegill to grow and spawn more for my bass to eat - I only care about growing bigger bass - I throw feed 5 times per day at 5 seconds each throw - the clean it up in under a minute - I cannot imagine how long and much I would have to throw to last 10 minutes before it was gone. They devour my feed