Thanks everyone. Yeah, I'm currently breeding guppies, but I treat them more as a treat for the fish. I'm also planning on breeding cons, once I get another tank setup.
He loves worms right now...thats about the only thing he attacks as soon as it hits the water. I've been throwing in 3-4 pieces of freeze dried krill and it usually all disappears. He kind of stalks it, feels it with his whiskers and then swims away. Then he'll come back 5 minutes later and strike. So that makes me happy.
I've been giving him a worm and the krill every night and then just krill in the morning. I usually throw in a few pellets at each feeding too. As of late, his belly always looks full.
He was probably 9-10 inches when I got him a couple of weeks ago and he's easily grown an inch or two since I got him. The guy said the aro was just a baby, maybe 5-6 inches. I don't think he ate the whole aro, just most of him. Seriously though, the guy had him in a 55g with an aro and a clown knife. He actually asked me if I knew anyone wanting to sell an 80 because he didn't think the 55 would hold them. I told the guy he might want to look for something A LOT bigger.