Dual-action chemical filter media keeps aquarium water clean, clear and fish-safe.Marineland® Diamond Blend ® Carbon-Ammonia Neutralizing Zeolite Blend combines fast-acting Black Diamond® Premium Activated Carbon and super-effective White Diamond® Ammonia Neutralizing Crystals for superior aquarium water quality. Effectively removes dissolved organic waste and odors as well as toxic ammonia and chloramines.

Marineland® Diamond Blend ® Carbon-Ammonia Neutralizing Zeolite Blend is ideal for freshwater aquariums especially during the break-in period of new aquarium setups. Use with a media bag in any aquarium filter.

Always rinse filter media before use to remove excess dust. Black Diamond crackles and gets warm as it is being rinsed. This is normal, letting you know it's ready to go to work.

Directions:
Use 8 tbsp per 10 gallons of aquarium water.
Place in media bag or media basket and rinse thoroughly in cold water to eliminate dust particles.

Replace every 2-3 weeks (sooner if foul smells or water discoloration occur).

Note: Replacement frequency depends on fish population, waste loads, and water hardness.