no im pretty sure she wont. mine never did that when she was alone. they seem live happier with a partner but only problem is that means hundreds of little convicts
if your tank is big enough i dont think they would do anything to your bichir but keep him away of their spawn site. i bred them and theyre not worth much at lfs they have too many of them.
the bichir would stand his ground if he had to an yea he would try to eat the fry. ill just stick with one so i dont get a massive fight one my hands. anything else u guys can think of that i should know about?