Seachem Reef Builder — Concentrated Alkalinity Supplement for Reef Aquariums (300g)

Seachem Reef Builder — Stable Alkalinity for Thriving Corals

Seachem Reef Builder is a concentrated supplement formulated to safely raise carbonate alkalinity in reef aquariums without altering pH. Proper alkalinity levels are essential for coral skeletal growth, reef stability, and overall marine health.

Key Benefits

• Safe alkalinity boost: Raises carbonate alkalinity without affecting pH balance
• Supports coral growth: Provides essential carbonate ions for skeletal development
• Prevents pH swings: Ensures stable water chemistry in reef systems
• Highly concentrated: Efficient dosing for long-term use
• Trusted brand: Developed by Seachem, a leader in advanced aquarium care

Usage Instructions

• Dissolve recommended dosage in freshwater before adding to aquarium
• Add directly to sump or high-flow area for even distribution
• Monitor alkalinity levels regularly with a reliable test kit
• Maintain alkalinity between 3–5 meq/L for optimal coral health

Maintain a stable and healthy reef environment with Seachem Reef Builder — the reliable solution for consistent alkalinity support.