Well, I played phone tag with Joedy @ TP&W today, but I did manage to get his office number and will call him tomorrow while I'm at work. I'll follow up here with an update.

Poking around further on the TP&W website I did find this encouraging excerpt : (g) A person may possess Mozambique tilapia in a private pond or private facility subject to compliance with �57.116(d) of this title (relating to Exotic Species Transport Invoice).