Seachem Reef Buffer

Seachem Reef Buffer (250g)

Seachem Reef Buffer raises and maintains marine aquarium pH at the optimal reef range of 8.3, the level naturally found in healthy tropical reef ecosystems. It also raises KH/alkalinity, providing the buffering capacity that corals require for stable calcium carbonate deposition (skeleton growth). Unlike two-part supplements that raise alkalinity and calcium separately, Reef Buffer delivers a rapid pH and KH correction in a single dose — ideal for tanks that need a boost after water changes or pH dips during nighttime algae photosynthesis cycles. Safe for all reef inhabitants including stony corals, soft corals, clams, and invertebrates.

Key Features

• Raises and maintains pH at 8.3 — the natural reef alkalinity level
• Raises KH/alkalinity for coral skeleton deposition
• Corrects pH dips after water changes or at night
• Safe for all corals, clams, and marine invertebrates
• Pairs with Seachem Reef Advantage Calcium for complete reef supplementation