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Reef Foundation B is a specially formulated carbonate and buffer complex designed to support the balanced growth of coral skeletons. In natural reef environments, the Red Sea Reef Foundation key building blocks of coral structures include Calcium, Magnesium, Strontium, and Carbonates. These essential foundation elements must be present in precise ratios to ensure healthy coral development, proper skeletal formation, and long-term vitality.
This supplement provides a concentrated blend of carbonates and other natural buffers found in seawater, helping to maintain the correct levels of alkalinity and stabilize pH within the reef aquarium. The water treatment for aquarium Proper alkalinity is critical because it influences coral calcification, resilience, and overall water chemistry stability. By regularly dosing Reef Foundation B, aquarists can create conditions that mimic natural reef ecosystems, promoting steady coral growth and strong skeletal development.
As an integral part of Red Sea’s comprehensive Reef Care Program, Reef Foundation B works alongside other Foundation supplements to maintain balanced water chemistry and optimal coral health.
Liquid
Alkalinity
Reef Foundation Program

As long as I stick to the recommended dosage and keep up with testing, it works well for my tank.
This has been a really useful part of my reef routine. It helps me keep my alkalinity where I want it.
I use Foundation A, B, and C together, and they've been working great for my reef. I like keeping the whole system consistent.
Pretty easy to use once I got the dosing routine down. It fits nicely into my regular reef maintenance.
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