How to set up a loop

I am trying to set up a macro to delete empty rows I have tryed a few things but this is the only code which seems to actully run through it.

How do I set up a loop so it will start at C20 for example and work up the sheet till C2

If ActiveSheet.Range("c20") = "" Then
     ActiveSheet.Rows("20:20").Select
    Selection.Delete Shift:=xlUp
End If

Try this code -

lastrow=range("C" & rows.count).end(xlup).row

for i = lastrow to 2 step -1
'your if code here
next i

Try this.
If it works then please mark the post as SOLVED

Sub DeleteEmpty()
Dim i As Integer
Dim shtTHIS As Worksheet
Dim c As Range
Dim chk As Boolean
Set shtTHIS = ThisWorkbook.ActiveSheet
For i = shtTHIS.UsedRange.Rows.Count To 1 Step -1
    chk = False
    For Each c In shtTHIS.Range("A" & i, "Z" & i)
        If VBA.Len(c) > 0 Then chk = True
    Next
    If chk = False Then shtTHIS.Range("A" & i).EntireRow.Delete
Next

End Sub

Another option:

Sub DelEmptyRows()
Range("C2:C20").SpecialCells(xlCellTypeBlanks).EntireRow.Delete
End Sub

Nilem for some reason that will not work the first part of the macro is copying and pasting text from a table in another workbook and this seems to be making the macro think there is data in the blank cess but there is not

GrahamRoss, Did you try mine above?