Activated Pond Carbon has the natural ability to absorb high amounts of organic solids out of your pond water. Pond Carbon will also absorb medications from the pond after treatments. Activated carbon has the ability to remove tannins from the water that cause the water become brown like tea. Use approximately 1 to 1½ cupfuls of Activated Carbon for every 100 gallons of pond water. Place in mesh carbon bag and set in moving water. In a pond, skimmer or waterfall filter is an excellent location. Replace carbon every four to five weeks as needed. Is carbon a waste of money? Watch The Pond Digger tell you what’s up!