Nitrates help

[Reef Pilot]

My recommendation is the Vertex reactors. Has a valve on the input side to easily control the flow and tumble of the bio pellets. And totally maintenance free. I have not opened mine up for almost a year now. No need for a separate pump either. I run mine off a T from my return pump output line. The output of the reactor goes to my skimmer. And because of their vertical design, they take a very small footprint.

They are not expensive either, compared to some others. And totally effective. I brought my nitrates down from a high of 100 ppm to zero, where they have been now for the last year. But you need to use MB7 with the bio pellets, or you will have other troubles, like cyano, clumping, etc.