Previously, it has been repeatedly suggested that the radioactive decay of nuclei is not a random phenomenon and can occur under the influence of a neutrino flux. Our recent experiment [1] showed that the neutrino flux created by a nuclear reactor affects the decay of nuclei in an isolated source 90Sr/90Y, whose beta-electrons have an average energy of the order of 1 MeV. This paper presents the results of searching for the effect of the neutrino flux generated by a pulsed nuclear reactor on the rate of decay of 63Ni nuclei. These nuclei were chosen as the object of research due to the fact that they have a low energy of beta-electrons of the order of 50 keV. Measurements have shown that the same flux of reactor neutrinos has approximately an order of magnitude stronger effect on 63Ni nuclei than on the previously studied nuclei 90Sr/90Y.