It really depends on how severe the chasing is, Rams usually establish a terrority and defend this very actively. In most cases it will be chasing, displaying, and ramming heads - this is normal for Rams as they are cichlids which in nearly all cases are terrortorial by nature, semi aggressive to aggressive. If the chasing turns constant or biting starts you could be in trouble, fish + stress = dead fish, removing one Ram might just leave a space for the other Ram to rule. It just depends on the fish, a last I have a pretty peaceful pair of Rams that draw the line at a quick chase or display with my other Dwarf Cichlids, Red Breast Acara and Apistogramma - but this coud just be down to my small Apisto Pair who more or less rule the tank. Every fish going to be different, just have to monitor and asses regulary.