Introduce a family of hedgehogs,to them slugs are delicacy and think what good you are doing to the animals survival.Biggest problem would be finding hedgehogs in the first place.My son is a vet ,in early summer they get a procession of people with hedgehogs .They pick them up after hibernation,Last one he was given gave birth to 5 babies which we released when they grew a bit .have seen them and mother frequently on our farm
Slug pellets are definitly very dangerous to pets