Tropic Marin Original Balling Part A (calcium chloride solution)
multi-part
Manufacturer data
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What one dose does
PARAMETER
1 ml / 100 L
Calcium
+0.1893 ppm
To raise calcium by 20 ppm in 100 L: 106 ml.
Maker’s daily maximum: 159 ml per 100 L (159 ml for 100 L).
How it’s used
Dose equal volumes of A, B and C daily, separately. Set the daily volume from measured Ca/Alk consumption (30 ml of each per 10 US gal adds ~15 ppm Ca and ~2.2 dKH).
Cautions
• Add the three solutions separately and in equal volumes; never mix them (precipitation)
• Dose at well-circulated spots or three separate spots
• Salinity creeps up slowly; correct with water changes/top-off
• Max 60 ml of each part per 10 US gal per day
Part of Original Balling
Sources
Solution strength 20,000 ppm Ca (manufacturer) -> 0.2 mg/L per 1 ml/100 L (derived; cross-checks with the 30 ml/10 USgal statement). Making it from the 1 kg component: dissolution table is an image on the page; derived requirement for 20,000 ppm is ~73 g CaCl2.2H2O per litre (Ca = 27.3% of the dihydrate). Refill bags dissolve to 5 L each without weighing.