# Does spectrochemical series trend depend on the metal center?

Can the trend of spectrochemical series vary/fluctuate according to the central metal atom (CMA) that is being used?

For example, for the CMA $$\ce{Ni^2+}$$ the ligand $$\ce{H2O}$$ will have more CFSE than $$\ce{NH3}$$ because $$\ce{NH3}$$ acts as a weak field ligand (WFL) for $$\ce{M^2+},$$ even worse then $$\ce{H2O},$$ though $$\ce{NH3}$$ is placed higher then $$\ce{H2O}$$ in the spectrochemical series.

An important example that I have encountered is of $$\ce{[Co(H2O)6]^+^3}$$, wherein $$\ce{H2O}$$ acts as a Strong Field Ligand (SFL), despite its lower position in the series.