Depends obet, there are over 60 different species of Ancistrus pleco. More than likely the Albino and the one you have are the same species though. If your plec is eating your swords then he's not getting enough veggie matter in his diet and needs to have veggies added to it. As for the aggression, there's not much you can do about that. You may want to consider getting a smaller BN plec, every fish is different