Guide
Water parameters guide
Everything you need to know about every measurable value: what it is, why it matters, and what ranges to maintain.
Temperature
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pH
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General hardness (GH)
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Carbonate hardness (KH)
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Nitrite (NO₂)
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Nitrate (NO₃)
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Ammonia (NH₃)
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Phosphate (PO₄)
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Iron (Fe)
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Carbon dioxide (CO₂)
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Total dissolved solids (TDS)
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Conductivity
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