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What one dose does
PARAMETER
1 ml / 100 L
Iodine
+0.08 ppm
To raise iodine by 0.02 ppm in 100 L: 0.25 ml.
How it’s used
Beginner: 5 ml per 200 L (50 US gal) every other day. Advanced: 1 ml per 80 L daily, adjusted so iodide reads 0.06-0.08 mg/L 6-12 h after dosing. Drip: ml = 0.125 x liters x mg/L rise.
Cautions
• Iodide overdose can stress invertebrates; test 6-12 h after dosing before increasing.
Sources
Stabilized potassium iodide (8,000 mg/L). No explicit maximum; normal for levels to drop within days.