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What one dose does
PARAMETER
1 g / 100 L
Alkalinity
+0.4486 dKH
To raise alkalinity by 1 dKH in 100 L: 2.2 g.
How it’s used
5 g (1 level tsp) per 80 L (20 US gal), dissolved in a cup of fresh water, daily until pH settles at 8.3 (1-7 days); then biweekly or monthly. Self-limiting at pH 8.3.
Cautions
• Heavy precipitate that does not clear in ~15 min indicates poor ionic balance; do a water change.
• Do not mix directly with Ca/Mg/Sr supplements.
Sources
General marine (fish-only oriented) buffer with borate and Mg/Ca/Sr/K salts; Seachem says reef-safe. Included for completeness.