Re: Pond Matrix in Saltwater
Yes, placing Matrix or Pond Matrix into your sump will be as effective, if not more so, than having many pounds of live rock. “Live” rocks or reef rocks remove nitrate by anaerobic denitrification. Pond Matrix removes nitrate by the same process. However, efficiency is magnified several folds by forcing the water to filter through the porous Pond Matrix. As with reef rock, anaerobic conditions are achieved by the porosity and the depletion of oxygen by the aerobic process at the surface. Because of the number and size of the internal pores, which create lots of anaerobic surface area, Pond Matrix houses denitrifying bacteria in both fresh and saltwater.