If you are reading this article you might think that this is the best product, but it is not. That's better than ceramic rings by 450 m²/l, but not the best competition when compared to Biohome (506 m²/l), Matrix (700 m²/l) or JBL Micromec (1500 m²/l). Don't think it's bad, it works great against ammonia and nitrite, but its density doesn't work well with nitrate. If you also want to control nitrates, I recommend JBL Micromec or Matrix. They control ammonia, nitrite and nitrate.
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