Hey I have my around 8 inch aro living with 2 angels and 2 koi at the moment. I feed my aro hikari food sticks and the angels and kois get excited and come to eat a couple sticks too. My aro eats like 1-3 sticks at once and then swims away and comes back. The time he takes to come back, the others start to eat and steal the food. I throw in tropical flakes to kind of take their focus off the food sticks for the aro, but is it okay for the aro to eat the tropical flakes? He does come and take gulps of the flakes and I'm afraid he isn't getting enough of the food sticks with the other fishies eating them.