Seachem Pearl Beach – Aragonite Substrate for Marine & High-pH Aquariums (10kg)

Seachem Pearl Beach is a natural aragonite-based substrate that supports calcium and alkalinity stability in reef, marine, and high-pH freshwater aquariums. Unlike “wet” gravels that are water-weighted and often contain only common bacteria, Pearl Beach is sold dry—offering 35% more substrate per bag by weight.

Its chemical composition helps prevent large pH swings and supports biological filtration. The grain size is more varied than Seachem Meridian™, providing a natural look and increased surface area for beneficial bacteria colonization. Pearl Beach is not a live sand but becomes biologically active over time.

Key Features:

• Natural aragonite – stabilizes calcium and alkalinity
• Buffers pH to 8.0–8.3 – ideal for marine and reef systems
• Dry substrate – more economical and shelf-stable
• Supports biological filtration and coral health
• Safe for marine fish, corals, and high-pH freshwater species

Product Specifications:

• Brand: Seachem
• Weight: 10kg (22 lbs)
• Volume: ~8600 cm³ (525 cu. in.)
• Form: Dry aragonite sand/gravel
• Country of Origin: United States

Directions for Use:

• Rinse thoroughly before use to remove dust
• Place in aquarium and fill slowly to avoid clouding
• Use a bowl or plate to diffuse water flow during filling
• Initial cloudiness is normal and clears with filtration
• Use Seachem Clarity™ to accelerate clearing if needed

Pro Tips:

• Not recommended for low-pH or planted tanks
• Can be mixed with live sand to seed beneficial bacteria
• Ideal for African cichlid tanks, reef aquariums, and marine biotopes