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Posted by neVar on April 29, 2003 at 13:34:46:
In Reply to: Rick (and others), wetland filter question posted by rick gordon on April 29, 2003 at 12:01:01:
IF you truely want to see how the water is doing- take a sample down to a fish store and have it tested for ammonia, nitrite and nitrate. Ammonia and nitrite should be zero. Nitrates should be low (if they are high- add more plants to it). this 'wetland filter' is along the same idea as a 'trickle' filter used in aquariums (mostly for salt but i love it for fresh too). Adding bacteria to it (Cycle, stress zyme, or the exoterra biological h20 additive they hve (biotize?)) will help if the ammonia, or nitrite levels are high. If those remain high there is not enough surface area (lava rock) for the amount of waste coming through. i am setting mine up using BioBalls as htey will give more surface area for the volume.