  We develop a hydrodynamic effective field theory on the Schwinger-Keldysh
contour for fluids with charge, energy, and momentum conservation, but only
discrete rotational symmetry. The consequences of anisotropy on thermodynamics
and first-order dissipative hydrodynamics are detailed in some simple examples
in two spatial dimensions, but our construction extends to any spatial
dimension and any rotation group (discrete or continuous). We find many
possible terms in the equations of motion which are compatible with the
existence of an entropy current, but not with the ability to couple the fluid
to background gauge fields and vielbein.
