Review on 🧼 EHEIM Substrat Pro Bio Filter Media (Sintered Glass Pearls) 5L by Maria Mejia

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.