Zoo Med 501 Activated Carbon Insert Filter MediaActivated carbon insert for Zoo Med's 501 External filter. Zoo Med's activated carbon filter media is made from the highest quality carbon available for superior absorption of ammonia waste products produced by captive turtles, amphibians, or aquarium fish. High ammonia levels can be deadly to amphibians and aquarium fish and will cause eye problems in captive turtles. Activated carbon is one step in reducing ammonia in your terrarium or aquarium. We also recommend weekly water changes of at least 20%. When adding tap water (after a water change) make sure you add Zoo Med's Reptisafe to remove chlorine and chloramines.
Instructions: Remove plastic bag surrounding carbon and discard. Rinse carbon under tap water to remove carbon dust. (15-30 seconds). Place carbon bag above ceramic media of your Zoo Med 501 Canister Filter. Replace carbon bag monthly or more often if you notice water turning yellow. Made in Italy.