ESV B-Ionic Calcium Bicarbonate System (2-part, low-pH version)
multi-part
Limited data
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What one dose does
PARAMETER
1 ml / 100 L
Alkalinity
+0.0196 dKH
Calcium
+0.1514 ppm
To raise alkalinity by 1 dKH in 100 L: 50.9 ml.
How it’s used
Lower-pH variant of B-Ionic intended for tanks that run above pH ~8.45. Dose both parts equally and adjust by test results.
Cautions
• Likely discontinued: not on ESV's last product page (2018) or BRS's current ESV listing
• Strength figure is second-hand (quarter of original); verify against label
Sources
Only seen via search snippets (reefs.com thread returned 403 on fetch). 'One quarter the strength' is the only potency clue; numbers here are that ratio applied to the original label values. Treat as unverified.