Will my six all male ducks be able to live together without fighting?

No, it is unlikely that six all-male ducks will be able to live together without fighting. Ducks, especially male ducks known as drakes, are territorial and may exhibit aggression towards each other to establish dominance and defend their territory. Keeping multiple male ducks together can lead to conflicts, injuries, and even fatalities. It's generally recommended to keep a ratio of one drake to several females to maintain harmony within the flock and reduce the likelihood of fighting.