A special filtration material that selectively removes phosphate which clouds the water and silicate, a natural mineral found in tap water.

Phosphates are released by fish waste, decaying organic matter and tap water sources.

Key Features:

• Keeps water clear and tanks clean
• Does not remove trace elements and does not affect pH
• Safe for all fish, invertebrates and plants
• Promotes growth of reef-building corals by preventing calcium and magnesium precipitation
• Use in fresh, saltwater and reef aquariums
• Treats up to 208L
• 1 Large Pouch