Array sorting in C -- Error in float version

Question

For some reason I don’t know, when I change the type of my int function to float it just doesn’t work properly:

void organizeArray(float array[], int size){
  int aux;
  for (int i = 1; i < size; i++)
  {
    for (int j = 0; j < size; j++)
    {
      if (array[j] >= array[j + 1])
      {
        aux = array[j];
        array[j] = array[j+1];
        array[j+1] = aux;
      }
    }
  }
}

When I change the function parameter to int and enter an int array it works correctly, but when I use float it doubles the 0 at the beginning of the ordered version.

Input: float array[10] = {5, 8, 4, 7, 9, 6, 3, 0, 2, 1};
Output: 0 0 1 2 3 4 5 6 7 8 /Why are two zeros coming out? Any idea how to fix?