I think you are both right. I used my same filter which had 2 trays of bio balls form the old tank. I let it run in the new tank for about 3 days until I put in the plants. I let it then run for 1 more day and I then changed the filter pads. I had read with a planted tank the plants would absorb any spikes. So I took out the bio's yesterday. Maybe I should have left them in longer. I am going to make another water change now.
Thanks to both of you!