#FOF_SECONDARY_LINK_TARGET_TYPES= # should normally be set to a list of all dark matter types (in zoom runs), if not set defaults to FOF_PRIMARY_LINK_TYPES
#FOF_GROUP_MIN_LEN=32 # Minimum number of particles in one group (default is 32)
#FOF_LINKLENGTH=0.16 # Linkinglength for FoF (default=0.2)
#FOF_FUZZ_SORT_BY_NEAREST_GROUP=0 # sort fuzz particles by nearest group and generate offset table in catalog (=1 writes nearest group number to snapshot)
#FOF_STOREIDS # store IDs in group/subfind catalogue, do not order particles in snapshot files by group order