Filter media to remove nitrite, nitrate and phosphate from the aquarium water.

Key Features:
• Removal of nitrite, nitrate and phosphate from the aquarium: filter medium for the use inside aquarium filters.
• To use: material is already packed in two filter bags. Insert into filter.
• Withdrawal of nutrients from the water: counteracts excessive algae growth.
• 600ml for 150 to 300 litres freshwater.