Biological Filter Medium for Freshwater and Marine Aquarium.

Features

• Suitable for freshwater, shrimp, pond, planted and marine aquarium systems.
• Extremely porous ceramic media for efficient biological filtration.
• Provides high surface area for efficient colonization of beneficial bacteria
• Hollow design effectively distributes water flow
• Allows massive colonies of beneficial bacteria to grow on and inside each ring
• Acts as a pH buffer to avoid fluctuations in water pH
• Breaks water molecules and increase dissolved oxygen
• Breaks down and removes ammonia and nitrite
• Removes toxic substances and heavy metals
• Maintains healthy environment for fish
• Reduces need for water change

Size:

• 500g
  
• 1000g