Im in a similar situation with a weeksii that is outpacing my del. The del is pretty much frozen at 9" and the weeksii is currently 13". Not that I expect a monster weeksii but it will likely get big enough to make a meal out of the del unless the del puts on some size. everything Ive seen members post here has said if they are sized close to each other usually no issue, but would a 20" bichir eat another bichir half its size?
