Walter sure is a stubborn guy isn't he? Mr. Big Bouncer! I think I'd be thinking about an increase...he hasn't done much since that little late night lagoon visit a few days ago...but if/when you do increase be sure to keep him fed. He needs to have food available as much as possible so as to avoid any rushing off to the lagoon - would love to see him stop this bouncing around.
Hang in there Zelda!