Seachem Reef Builder 600g

Product details

Seachem Reef Builder 600g (363) is an aquarium additive designed to raise carbonate alkalinity (KH) for reef and other marine systems. In practice, it helps correct low alkalinity without creating an immediate pH spike, making it useful when you want to increase buffering capacity while maintaining more stable conditions in the short term.

Features:

• Raises carbonate alkalinity (KH) with minimal immediate impact on pH
• Uses a blend of carbonate sources that is formulated to avoid the pH-lowering effect sometimes seen with competing bicarbonate-only approaches
• Supports long-term stabilization around approximately pH 8.3 with ongoing use (when used as directed)
• Helps maintain alkalinity without depleting calcium, magnesium, or strontium, which can otherwise be affected when alkalinity rises
• Can be paired with Seachem Reef Buffer for different outcomes depending on whether you want to manage KH alone or KH plus pH
• Helps you maintain alkalinity within a recommended reef range rather than letting KH drift too low

Specifications:

• Product name: Seachem Reef Builder 600g (363)
• Intended use: Alkalinity (carbonate/KH) supplement for aquariums
• Recommended alkalinity range: 3–5 meq/L (8–14 dKH)
• Do not allow alkalinity to fall below: 2 meq/L
• Behavior when used long term: Tendency to stabilize at approximately pH 8.3