Tenants have more kids then on initial application

[David T]

I rented out a house a few months ago and the tenants put on the application that they had 3 kids.  Now there are 5 kids standing out for the school bus.  Apparently the husband now has custody of 2 kids of his from a previous marriage. What should I do? Obviously the town has to pay more for the kids in school, but what negative effects does this pose for me? So far they have paid every month on time so there are no issues there. Should I raise the rent for extra wear and tear? Ask them to move out since there are 2 more kids then what is on the lease? Or should I just leave everything as is since they are paying?