Mine would eat from my fingers and if I made an O with my fingers he'd swim through it. Very cool fish and I really like the fact they can live 20+ years. I ended up giving him away and I am sorry I did. I will get more bichirs someday. I just recently fired up the old 75g again but this time it's housing a planted peaceful community. I will get another larger tank someday so I can keep some of the bigger bichirs.
Would be nice if they did, but 20 years is not going to happen!
A Wild caught or F1 may POSSIBLY if kept in optimal conditions live to see 10-12 years.
Most Senegalus these days are mass produced farm pieces that are more likely to live 5-8 years.