- Location
- Brooklyn, New York
Well for the longest time since I've been in this hobby I have ran two types of mechanical filters fluval 404 and emperor 400 with high end filter media and I can say this much. From personal experience all they really do is polish the water but in the end they contribute to nitrate buildup at least from my experience. Never again !!!! My nitrates have dropped like a freakin rock since dropping the mech filter and upgrading my skimmer :smile:



