Salifert test kits remain the gold standard for hobbyist water testing. Their alkalinity, calcium, and magnesium kits offer enough resolution to catch parameter drift before corals respond.

Resolution

  • Alkalinity: 0.1 dKH
  • Calcium: 10 ppm
  • Magnesium: 60 ppm

Verdict

Worth the slight premium over API. Reorder kits before they expire — reagent freshness matters.

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