Sharky looks real cute and with a good personality too
I wouldn't expect a lot on regards to taming him like you did Jiggy. Robos don't much like to be handled. I have two and neither one will let me pick them up, or lift them up since they won't stay on my hand long. But they do enjoy attention and you can bond with them even if you can't hold them.
What size cage do you have? Is it a 40 gal tank? It looks great!