I want more money so I want the court to modify the order to restrict the fathers visitation

I have primary custody of my son and filed child support on his father.

Currently his father doesn't pay for anything. His father takes him every Tuesday.

I need more help with him so I asked him to take our son every Monday as well.

Will this have any bearing on child support. He definitely does not have him 50% of the time.

Edit: Ex refused to help Mondays so I guess this doesn't matter anyways. I asked because he told me if he DID help, he would petition to get child support reduced but I didn't think it worked that way.