How is a scrubber different from a skimmer?
Scrubbers remove Inorganic Nitrate, Inorganic Phosphate, ammonia, metals and CO2 from the water. (Inorganic Nitrate and Inorganic Phosphate are what cause nuisance algae to grow on your rocks and glass, and are what you measure with your test kits.) Skimmers remove Organics (food) from the water. Both scrubbers and skimmers, however, add oxygen to the water. Scrubbers add more, however, and can supersaturate the water with oxygen.
Scrubbers remove Inorganic Nitrate, Inorganic Phosphate, ammonia, metals and CO2 from the water. (Inorganic Nitrate and Inorganic Phosphate are what cause nuisance algae to grow on your rocks and glass, and are what you measure with your test kits.) Skimmers remove Organics (protein/food) from the water. Both scrubbers and skimmers, however, add oxygen to the water. Scrubbers add more though, and can supersaturate the water with oxygen, due to photosynthesis.
