Yes, that's Ghost, and thanks! He's the hammiest beta of the 4 in my household. People who think fish have no personalities have never met betas.
He did NOT approve of the snail. He nipped it every time it peeked out. I was on the point of removing it to Chicory's tank, even at the risk of it climbing out (rimless edge with a feeding port in the cover, eek), when he finally decided that escargot wasn't his thing, and has been ignoring it since. Your boy seems quite intrigued by your snail!
I went and looked at the site on snails, and I don't think I'll ever know if it's a he or she. Seemed like the only differences were "under the shell".