I purchased my first Arowana (3-4inches) about 2 weeks ago. The best I can tell an arowana that size needs to eat 3xday. I have been attempting to feed 2xday due working 10hr shifts with over an hour each way commute each way. However the Arowana seems to have no interest in eating in the morning however he is very aggressive and eats multi small pieces of tilapia that I feed my stingray in the evening feeding. Should I be concerned about him getting enough to eat or will once a day be sufficient. Current homed with 2 Jack, 1 Rec Stingray and 2 angle fish in a 125 gallon grow out tank. I have a 610 gallon ordered.