Very nice monster, Kev. Have you tried her with tiny tankmates, like cardinals or something small enough she would ignore?
I have. I put about 20 mosquitofish in with her about a year ago. They lasted for about 7-8 months, but she eventually got them all. I have my Mbu in a tank that she can see from her tank, she is so aggressive she tried to kill him and about did herself in glass banging. She also now detest me now that she knows I own another puffer. No more letting me pet her or greetings when I come home. She just sits under her log and pouts.