Originally Posted by DarkCobra
None of the fertilizers Tien listed are a significant source of nitrogen.
Given that and the low bioload, it's likely the test result is simply wrong.
Thats what I would think but I verified it with 2 different API test kits. I have never liked those test kits though. I think they are very inaccurate. I took a water sample from another tank to my LFS and they said high nitrates. I went home and used the same brand kit to find significantly better results. I have a nitrogen fert but I do not dose it at all and Flourish doesn't contain nitrogen.
Let me ask this, do the plants I have listed sound like enough to control nitrates for 8 gallons in a small bio load?