As mud crabs often live in areas of turbid coastal waters, high turbidity is not a
major issue, with the exception of water required in hatcheries. However, the use of
sand or other filtration methods can reduce highly turbid water to water suitable for
hatchery and live feed production.
While mud crabs can survive a wide salinity range in culture (5–40 ppt), optimal
growth appears to be in the range of 10–25 ppt for S. serrata, although research has not
been undertaken for all species, for the entire size range of each species and certainly
not from all countries where they are grown.