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General hardness is the divalent metal cation content of the water. In most water this is comprised primarily of calcium and magnesium. Soft water has a low concentration of dissolved divalent cations, hard water a high concentration.
The native environment of some plants (Cryptocoryne, Aponogeton, etc.) is soft, whereas others (Sagittaria subulata, Riccia fluitans, etc.) are more acclimated to hard water. In order to replicate these environments it may be necessary to adjust hardness.
mineralize™ is a blend of divalent salts designed to restore or increase general hardness.
Sizes: 150 mL, 350 mL, 1 L, 4 L
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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