Pretty Much all- Amonnia never reads below .25, Nitrite aswell and Nitrate comes up with a very light blue color that's not even on the chart, it wasn't just my kit, I been told acouple times from different people here about them. I did a search also which turned up more threads on the test kit.
I paid about $50 for the Red Sea Test kit, might aswell have flushed it down the toilet. Was not a happy camper when I found out.....