Hydor activated carbon with low ash content for freshwater aquariums is a filter media designed to obtain crystal clear water without affecting pH. It does not release phosphates, heavy metals, and other substances that are harmful to aquatic life.

• No unpleasant odors
• Minimum ash content
• No PH reaction
• 100% Crystal Clear Water
• For use in freshwater aquariums

Highly adsorbent Freshwater activated carbon eliminates bad odors and polluting substances. 3-100gm pouches