This morning I just noticed a couple small black ants on my Nepenthes. They seemed attracted to the tiny beads of nectar that formed on the underside of the leaves. I just checked the plant a few minutes ago and now the plant has a large number of the ants on it, all sucking on the nectar beads. I can see they're coming from outside in through the window.
Can the ants harm the plant? Should I try to get rid of them? Any hints or knowledge would be helpful.