Marine Buffer - 1.1 lb.

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SKU: 198654
Manufacturer: Seachem
MPN: 343

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Marine Buffer is the original and still unique buffer with a pH of 8.3, designed to adjust pH to 8.3 and maintain both pH and alkalinity (KH). It is formulated not to disrupt the natural ionic balance of marine water with prolonged use. Contains a natural balance of sodium, magnesium, calcium and potassium salts of carbonate, bicarbonate, and borate, formulated for enhanced and lasting buffer capacity at pH 8.3 without sacrificing calcium. It dissolves readily and does not obscure water clarity.

Treats up to 2,000 gallons.


Package Size1.1 lb.
Treats up to2000 gal.
pH Range8.3
Internal Id


Contains: proprietary blend of sodium, magnesium, calcium, potassium, and strontium salts of carbonate, bicarbonate, chloride, sulfate, and borate.


Directions: Add 5 g (1 level teaspoon) for each 80 L (20 gallons*). Dissolve in at least one cup of freshwater. This dose will also raise alkalinity by about 1 meq/L. Add daily until pH stabilizes at 8.3. This will take from a day to a week, depending on original pH and alkalinity. Thereafter, use biweekly or monthly to maintain a pH of 8.3. If this practice is not adequate, then overstocking, overfeeding, or other poor management practice should be sought as a likely cause. In ionically balanced marine water, Marine Buffer produces little precipitate or cloudiness. If an extensive precipitate forms upon addition of Marine Buffer that does not dissolve within ~15 minutes, then poor ionic balance was present. A water change should be initiated when convenient before further use of the product. Effectiveness improves with continued use. Do not directly mix with any calcium, magnesium, or strontium supplement.

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