L_[C II–SFR relation for the three simulations used in this work (REF-L0025N0376, RECAL-L0025N0752, and REF-L0100N1504) presented as contour maps (pink, olive and cyan, respectively) and an observational sample of local galaxies (grey dots, briefly described in Appendix A). The contours shows where 90% (solid) and 50% (dashed) of the galaxies of the respective simulations fall in the relation. The sample of local galaxies is a compilation of different surveys containing main sequence galaxies (Brauher et al. 2008, ISO Compendium), starburst galaxies (Díaz-Santos et al. 2013, 2017, GOALS), dwarf galaxies (Cormier et al. 2015, 2019, HDGS), star-forming, AGN and LIRG galaxies (Herrera-Camus et al. 2018b,a, SHINING), dusty main sequence galaxies (Hughes et al. 2017, VALES) and intermediate-stellar-mass galaxies (Accurso et al. 2017, xCOLD GASS). We present the mean error from the observational samples in the bottom-right corner of the plot. The dashed red line is the power law derived by De Looze et al. (2014) for the relation at z = 0, with the shaded red region representing the 1σ scatter.