How can I change position of instantiate objects (clones)?

I created a series of sphere clones in my game. After that I adapted the scale so that they appear smaller. However, now there is a gap between these spheres ... and I would have to change the position of this instatiate game objects. I changed my code already exactly at this position but nothing happens. So please I need your help! How can I do this? I would have very small spheres which are located near together.

Here the code:

 using UnityEngine;
 using System.Collections;
 
 public class SineWave : MonoBehaviour {
 
 
     private GameObject plotPointObject;
     private int numberOfPoints= 100;
     private float animSpeed =1.0f;
     private float scaleInputRange = 8*Mathf.PI; // scale number from [0 to 99] to [0 to 2Pi] //Zahl vor Mathf, Anzahl Bön 
     private float scaleResult = 2.5f; // Y Achse Range 
     public bool animate = true;
 
 
 
 
     GameObject[] plotPoints;
 
 
     // Use this for initialization
     void Start () {
 
         if (plotPointObject == null) //if user did not fill in a game object to use for the plot points
             plotPointObject = GameObject.CreatePrimitive(PrimitiveType.Sphere); //create a sphere
 
 
         //add Material to the spheres , load material in the folder Resources/Materials 
         Material myMaterial = Resources.Load("Materials/green", typeof(Material)) as Material;
         plotPointObject.GetComponent<MeshRenderer> ().material = myMaterial;
 
 
         //change the scale of the spheres 
         //plotPointObject.transform.localScale = Vector3.one * 0.5f ;
         plotPointObject.transform.localScale -= new Vector3(0.5f,0.5f,0.5f);
 
 
         plotPoints = new GameObject[numberOfPoints]; //creat an array of 100 points.
         //plotPointObject.GetComponent<MeshRenderer> ().material =Material.Load("blue") as Material
 
 
         //plotPointObject.transform.localScale -= new Vector3 (0.5F, 0.5F, 0.5F); //neu: change the scale of the spheres
 
 
         for (int i = 0; i < numberOfPoints; i++)
         {
             plotPoints[i] = (GameObject)GameObject.Instantiate(plotPointObject, new Vector3(i - (numberOfPoints/2), 0, 0), Quaternion.identity); //this specifies what object to create, where to place it and how to orient it
 
         }
         //we now have an array of 100 points- your should see them in the hierarchy when you hit play
         plotPointObject.SetActive(false); //hide the original
 
     }

And here a screenshot of how it looks like for the moment:

link text