  We study temperature effect on anomalous viscosity of Graphene Hall fluid
within quantum many-vortex hydrodynamics. The commonly observed filling
fractions, $\nu$ in the range $0 < \nu < 2$ is considered. An expression for
anomalous viscosity dependent on a geometric parameter-Hall expansion
coefficient, is obtained at finite temperatures. It arises from strained
induced pseudo-magnetic field in addition to an anomalous term in vortex
velocity, which is responsible for re-normalization of vortex-vortex
interactions. We observed that both terms greatly modify the anomalous
viscosity as well as an enhancement of weakly observed v fractions. Finite
values of the expansion coefficient produce a constant and an infinite
viscosity at varying temperatures. The infinities are identified as energy gaps
and suggest temperatures at which new stable quantum hall filling fractions
could be seen. This phenomenon is used to estimate energy gaps of already
measured fractional quantum Hall states in Graphene.
