Does EBB remove nitrates?
In the nitrification process, nitrates will begin to accumulate. If there are plants in the tank, nitrates will be used by the plants. Vegetation that grows due to light will also use nitrates. Anaerobic microbes in gravel in an established tank will convert nitrates to NO2, a gas, which will evaporate. If there are no plants or gravel and you want to reduce nitrates quickly, you may have to do a partial water change, however; EBB does encourage the growth of these anaerobic microbes and often you will find low or no nitrates in your tank or pond.