DCA Grannular Bulk Ferric Oxide GFO - High Capacity 1 pound rods and a few urchin species

and a few urchin species

Always complete a full course of treatment

The explanation is as follows

It is true that the principle is still the same as decades ago

DCA Grannular Bulk Ferric Oxide GFO - High Capacity 1 pound rods and a few urchin speciesDETAILED 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