Do nitrate reducing pads work?

Описание к видео Do nitrate reducing pads work?

No reason to bore you with another video. The answer from this experiment was NO, they do not work. Realize this was a static test, that is, no new nitrate or phosphate was being produced. All these pads had to do was remove 10 ppm NO3 and 0.25 ppm PO4 in 5 gallons of saltwater and they did not. Am I doing something wrong or are these a waste of money?

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