Have a 5 inch silver arowana. Had him for about 3 weeks now. He eats koi pellets, cichlid pellets, crickets, and blood worms. I'm trying to vary his diet. I recently triet cut tilapia. But he won't eat it because it sinks to the bottom to fast. I got him to eat 1 piece I held at top water level and let him grab it from my hand. But that was the only time. He gets scared and runs when my hand gets close to the water and runs. So my question is HOW am I suppose to be feeding him? I hate feeding him things that sink like blood worms, black worms and sinking pellets cause he won't chase them or even pay it attention. When I try to hand feed him he gets scared. I really want him give him a high protein varied diet so he can grow fast. I have a 2 inch peacock bass that I don't want catching up to him. Please help?