• High natural platform for essential microorganisms
• High calcium content
• Helps maintain a stable PH level
• No microbiological contamination
• Ideal for building coral reefs
• Natural rocks
• Natural coral reefs are not destroyed
• Instant reef-like appearance

Weight per carton/box: 12 kg, approximately 13-20 pieces.

**Product images are for illustrative purposes only and may differ from the actual product. Due to screen differences, product colors may appear different from those displayed on the site**