I have had my tank almost fuly planted for about 4 days and the water is really getting murky. I used to have crystal clear water. Is this common in planted tanks?
Do you have or have you considered getting a diatom filter? They work wonders for clearing algae blooms - crystal clear water in a couple of hours.
But you should find the cause of what caused the problem too. Your water parameters are a good start... did you add some plant food reciently (change your water chemistry) along with adding new plants?