Add 5 g (1 level teaspoon) for each 80 L (20 US gallons). For precise dosing, use the Seachem Digital Spoon Scale™. 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.
Marine Buffer® Dosing Tables
The following dosing tables provide the standard dose for various water volumes.
| Water Volume | Dose in g | Dose in Tsp |
| 1 gallon (4 L) | .25 g | 1/20 tsp |
| 5 gallons (20 L) | 1.25 g | 1/4 tsp |
| 10 gallons (40 L) | 2.5 g | 1/2 tsp |
| 20 gallons (80 L) | 5 g | 1 tsp |
| 50 gallons (200 L) | 12.5 g | 2.5 tsp |
Please note that the dosing instructions found on the Seachem.com product pages are the most complete and up-to-date version of the dosing instructions.
The dosing instructions above were last updated April 17, 2023.
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