We investigate the effects of hydrodynamics conservation properties of different thermostats in calculating the transport quantities in near-critical fluids in the Canonical ensemble. In particular, we focus on single-particle diffusivity, shear and bulk viscosities, collective diffusivities. The thermostats considered are Andersen thermostat, Langevin thermostat, Nose-Hoover thermostat, dissipative particle dynamics, and the microcanonical ensemble.