- Blend of divalent salts designed to restore or increase general hardness.
- Standard dose raises GH by 1 meq/L (2.8 dGH)
To raise mineral content/ general hardness (GH) by 1 meq/L (2.8 dH), use 5 mL for every 40 L (10 US gallons) when setting up an aquarium or when making water changes (add to new water). Thereafter, use once a week (or as needed).
This dose raises GH by 1 meq/L (2.8 dGH).
Target a lower general hardness for soft water, a higher value for hard water (see chart).
| meq/L | Rating |
|---|---|
| 0-1 | Soft |
| 1-2 | Moderately Soft |
| 2-3 | Slightly Hard |
| 3-4 | Moderately Hard |
| 4-5 | Hard |
| 5-6 | Very Hard |
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