In most 50/50 custody situations, the parents share the financial costs of the child. If he is ordered to pay child support to you, this probably means that he makes more money than you do. Generally speaking, each parent would be required to provide all the necessities for the child while in his/her care. Some exceptions may be, but are not limited to, additional medical expenditures and extracurricular activity costs. As for clothing, food, housing, toiletries, etc, it would be generally accepted that he should provide these things while the child is in his care.
However, you should check your court order, just to be certain that there is no stipulation regarding this issue.