GADGET-X (left) and GIZMO-SIMBA (right) BCG+ICL stellar mass within different spherical regions as a function of total halo mass. First row shows the total BCG+ICL stellar mass, squares denote individual measuremente of each of the 324 main clusters, grey symbols show data from Gonzalez et al. (2013) and Kravtsov et al. (2018), as labelled; the shaded region shows the best-fit from Kravtsov et al. (2018). Second row shows the total BCG+ICL mass within 100 kpc aperture and the third one shows the BCG+ICL stellar mass contained between 10 and 100 kpc apertures. Grey symbols show observational estimations from DeMaio et al. (2020).