I would not do any water changes until the tank is cycled. Just let the tank be until it is cycled. You will know the cycle is over when both the ammonia and nitrite spike, and then settle at 0. At this time, you will want to do a 20% water change to get the nitrates down.
By the way, nice avatar pic of the big eye squirrel. They are very cool fish. Mine is my little ADD fish.