  A system of equations of anisotropic hydrodynamics that describes mixture of
quark and gluon fluids is studied. The equations are based on the zeroth,
first, and second moments of the RTA kinetic equations. Tests of this
formulation are performed by comparing the results of anisotropic
hydorodynamics with the exact solutions of the Boltzmann equations for a
mixture of fluids in the Bjorken flow limit. One finds a very good agreement
between the hydrodynamic and kinetic-theory results.
