The black sawtail can be mixed with other fish. There are a few requirements to be aware of.

1. Similar body shape: The body shape of the polycultured fish must be similar to the black sawtail crane, otherwise the big fish will eat the small fish.

2. Similar habits: except In addition to the similar body shape, the habits of polyculture fish should also be similar, and they need to adapt to the pH, water temperature and salinity.

3. Sufficient space: polyculture fish must provide sufficient space, because some fish will have territorial awareness. If the territory is violated, they will launch attacks, and sufficient space can provide a certain degree of security distance and avoid frequent territorial encroachment.