Well I have never used DeNitrate but I can vouch that it wasn't MATRIX that was your problem. I have used that forever and in HUGE amounts far above what is recommended and have experienced nothing but greatness.
Take your water and go to your LFS and pay them few bucks to test your water. I think something wrong with your test kits or something went wrong in your tank and you didn't notice about it.oky im so confused what I did wrong? I tested the water and it still the same. the tetra safestart say test in 2 days or something and I did but same result. Should I add another bottle?
Take your water and go to your LFS and pay them few bucks to test your water. I think something wrong with your test kits or something went wrong in your tank and you didn't notice about it.