| Product | dKH per ml per gallon |
|---|---|
| BRS sodium bicarbonate (Pt 2) | 0.0084 |
| Red Sea Reef Foundation B | 0.0094 |
| ESV B-Ionic Alk 8 | 0.0094 |
| Kalkwasser (saturated) | 0.012 |
| Soda ash (saturated) | 0.014 |
Test alkalinity with Hanna Marine Alkalinity Checker (most accurate) or Salifert KH/Alk test (close second). Avoid API saltwater alkalinity tests - they read 0.5-1.0 dKH high.