Until your tank has fully cycled, you will have readings that are quite out of balance. I have had the same issues, and the answer was always a 50% water change of more. Don't be afraid of doing LWC. There is very little that fish need from water other than O2. The rest is dissolved chemicals and minerals that are often hazardous to fish anyway. I have always heard that "dilution is the solution to pollution. Do you have any ornaments, sea shells, or other man made objects in your tank? If so, I would try removing them and see if your levels change.
Dwayne