hey all ive recently aquired a batch of kn03. Im trying to raise my nitrate's for the first time to 10ppm. Ive been dosing the tank twice a day at the rate of 1/4 teaspoon. my tank is 330ltrs. At thise stage there is no rise when ive tested the water again after a few hours when i added the kn03. What i would like to know is if anything would be stopping the nitrates from rising and secondly what was other peoples experience when first attempting this process.

Thanks for you input!!!!