[AprilPearl]

Don’t worry, I really doubt they will harm Peanut. However, I would do a thorough clean of the cage. Check that none of her food has gone off. Never leave fresh fruit or veg in the cage and store all food in air tight containers. It may be one lone ant, or several may have been attracted by the smell of Peanut’s food. I also second potentially moving the cage to a different room.