I had 4 of them. I bought them when they were 6" and they were the most awesome aro I have ever had. They will eat anything that is small enought to get in there small mouth. I was feeding them cut up earthworms,frozen red worms,cichlid sticks,cichlid pellets. They grew to 12"-14". I just traded the 4 african arowanas for 4 baby arapaimas. The aros never stop swimming during the time I had them.