i have decided it is too expensive for me to feed my clown knife, and save for a new tank for him. i make about 20 dollars a week, and he eats about 18 dollars worth of food, not a good idea when saving for a new tank, so i have decided to give him to anyone with the money, and space available. i thought i would post here first, because this is a predatory fish, and thats what this thread is about, and likely filled with experts. this fish is aproximately 12 inches in lenght, and will grow much larger! he eats aproximately 150 a week, commonly sold at pet stores as "rosies" or "tuffies". DO NOT FEED FEEDER GOLDFISH!!!! they cause vitamin D defficiencies, and can kill the knife over time. i say again, this fish is FREE.