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What one dose does
PARAMETER
1 ml / 100 L
Iron
+37.854 ppb
To raise iron by 1 ppb in 100 L: 0.026 ml.
Maker’s daily maximum: 13.2 ml per 100 L (13.2 ml for 100 L).
How it’s used
Target 0.05-0.10 ppm Fe. Basic: 5 ml per 50 US gal every other day. If below 0.10 ppm, up to 10 ml per 20 US gal daily until target. Maintenance ml/day = daily ppm drop x US gal (potency 1 ppm/ml/gal).
Cautions
• Keep phosphate at or below ~0.05 ppm when dosing iron.
• Maintain within about +/-0.02 ppm; easy to overshoot.
Sources
Sodium feredetate (Fe-EDTA). The page's maintenance sentence omits the divisor (it is 1). Note 10 ml/20 gal would add 0.5 ppm, far above the target range; the app should cap by target, not by maxDose alone.