I'm new to aros as well but i've learned to recognize when the aro is hungry, how much he eats and more importantly, that some aros have a taste for certain things. for example mine doesn't like tubiflex and blood worms, eats shrimps ok but loves hikari food sticks. also learn how big he can munch. at first i would give mine a whole shrimp and he would bite on it, hold it in its mouth and spit it out. turns out it was simply too big to swallow so now i break them in half. All that to say spend some quality time with the fish. you'll learn his habits and preferences
also, my boy (or gal) is 6 months old
also, my boy (or gal) is 6 months old