Seachem Meridian™ – Premium Aragonite Substrate for Reef & Marine Aquariums

Build a natural, stable foundation for your reef aquarium. Seachem Meridian™ is a premium natural aragonite substrate designed to support healthy marine water chemistry while creating the ideal environment for reef inhabitants.

Key Benefits:

• Premium natural aragonite substrate
• Helps stabilize calcium and alkalinity
• Assists in preventing major pH drops
• Fine grain size ideal for reef systems
• Suitable for marine and reef aquariums

Substrate plays an important role in marine aquarium chemistry and livestock comfort. A quality aragonite substrate helps support stable water conditions while creating a more natural habitat for reef organisms.

Meridian™’s aragonite composition helps support:

• Calcium stability
• Alkalinity balance
• Improved pH buffering

✔ Contributes to healthier long-term marine water chemistry

• Rinse before use to remove residual dust
• Add water slowly to minimise substrate disturbance
• Initial cloudiness is normal and temporary

For faster clearing, use:
1. Mechanical filtration (filter floss)
2. Seachem Clarity™

For faster biological cycling, use:
1. Seachem Stability™

If you want a premium reef substrate that supports stable marine water chemistry and natural aquarium aesthetics, Meridian™ is an excellent foundation for your marine setup.