ESV B-Ionic Calcium Buffer System Component 1 (Alkalinity)
alkalinity
Partly derived
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What one dose does
PARAMETER
1 ml / 100 L
Alkalinity
+0.0785 dKH
To raise alkalinity by 1 dKH in 100 L: 12.7 ml.
Maker’s daily maximum: 26.4 ml per 100 L (26.4 ml for 100 L).
How it’s used
Start 1 ml of each component per 4 US gal per day (1 ml per 8 gal if also using kalkwasser); dose the two parts separately into strong flow and adjust by testing. Equal volumes once Ca/alk are on target; unequal dosing is fine temporarily to correct.
Cautions
• Do not exceed 1 ml per US gal of each component per 24 h
• Keep pH below about 8.45 (carbonate-based, raises pH)
• Never mix Component 1 and 2 together
• Alk part can crystallise below ~60 F; warm and mix until fully redissolved
• Concentrate sizes must be topped up with RO/DI to the fill volume before use
Part of B-Ionic
Sources
ESV's own site (esvco.com) is offline/hijacked; start dose confirmed on the archived ESV FAQ and BRS. The 2800 meq/L and 0.74 meq/L-per-ml/gal figures come from a retailer (Aquarium Depot) transcription of the label (page was rate-limited when re-checked; seen via search snippet). BRS calculator constant for 'E.S.V. B-Ionic (Part A)' is 0.8 meq/L per ml/gal (8% higher). Effect applies to ready-to-use strength (concentrate diluted to its stated volume).