That's awesome and hilarious. I remember when I was on the forums yeeeears ago Jumbo was only about an inch or two long. Really cool to see him all grown up.I actually did the same with some Convicts and my big Zonatus. Not only didn't he eat the Convict...the fish lived with Blue for almost a year. It was hilarious.
For the record, I have personally been bitten a half dozen times over the years. ALL of them by a managuense...most of them by the fish I called Jumbo. He was the only fish I had to distract on one end of the tank while I put my hand in the other end. One time I was reaching across the open tank to pull the shades and he literally jumped up and out of the water biting the back of my arm...hung for a second then splashed back. Another time I had a TV crew over to look at the collection. The reporter was filming Jumbo's tank. I said, if you open the lid he will come to the surface to see you. She did...and he did jumping up and damn near biting her nose.
Here he is during a water change. He was psychotic.
What a bruiser