Maintain stable magnesium levels and support coral growth with Reef Essential® Aragonite C™. Formulated with ionic and complexed magnesium, plus sulphate and essential trace elements, this supplement helps strengthen aragonite structures and prevent fluctuations that can stress your reef system.

• Stabilises Magnesium – maintains recommended levels of 1230–1310 ppm

• Prevents KH Swings – reduces alkalinity fluctuations linked to low magnesium

• Supports Aragonite Formation – vital for strong coral skeleton development

• Trace Element Enrichment – provides sulphate and other key aragonite constituents

• Part of a Complete System – use with Aragonite A™ and Aragonite B™ for full-spectrum reef supplementation

• Reef Safe & Easy to Dose – suitable for dosing pumps or manual addition

📦 Contents: Deionised water, Magnesium, Sulphate & Trace Elements
⚖ Dosing Guidelines:

• Lightly stocked: 0.50ml / 100L daily

• Moderately stocked: 0.75ml / 100L daily

• Heavily stocked: 1.00ml / 100L daily
  1ml/100L raises magnesium by approx. 1 ppm; other elements rise proportionally.

👉 For enhanced coral tissue growth and colouration, pair with Reef Essential Bioactive Colour Intensifiers™.