Yeah I'm not saying certain Bichirs won't but a sen vs a full grown barb? I had my dels in with 3 to 5" filamented barbs and the dels are 9 and 10". They are in with black skirts now.....lol.
just don't do green tiger barbs haha. I bought 6 of those and they were gone within 3 days. Anything that can fit in a poly's mouth, it will try to fit in its mouth.