DCA Grannular Bulk Ferric Oxide GFO - High Capacity 1 pound rods which is ammonia plus ammonium

which is ammonia plus ammonium (NH3 and NH4+)

and a few urchin species

nitrifying bacteria for over 30 years and was the first company to commercially produce nitrifying bacteria for the aquarium industry

The explanation is as follows

Do not add to pump intake port(s)

DCA Grannular Bulk Ferric Oxide GFO - High Capacity 1 pound rods which is ammonia plus ammoniumDETAILED INSTRUCTIONS: 1) Standard Starting dose is 1 gram gallon: best in fluidized reactor. EXAMPLE: 8 grams= 1 level tablespoon, 16Tbsp=1 cup. 1 cup per 128 gallons to start, 1 cup per 64 gallons standard dose. 2) Monitor phosphates, add or change media when levels start to rise, or if algae increases. Sometimes the algae consume so much phosphates the levels test low while algae growth is still present. Once break in period is over, continue