Seachem Reef Builder™ – Boost Carbonate Alkalinity Safely
Reef Builder™ is a carefully formulated blend of carbonate sources designed to raise carbonate alkalinity (KH) in marine and reef aquariums with minimal impact on pH. Unlike bicarbonate-only products, it provides stable alkalinity without lowering pH or depleting essential minerals such as calcium, magnesium, and strontium. Over time, Reef Builder™ helps stabilize pH around 8.3, supporting optimal conditions for coral growth and overall reef health.
Key Features:
• Raises carbonate alkalinity (KH) safely and effectively
• Minimal immediate impact on pH
• Maintains essential minerals: calcium, magnesium, and strontium
• Ideal for long-term reef stability
• Compatible with Reef Buffer™ for comprehensive alkalinity and pH management
• Supports healthy coral growth and reef ecosystems





