Seachem Reef Complete – Ionic Calcium Supplement for Reef Aquariums (250ml)

Seachem Reef Complete is a premium liquid supplement that delivers 160,000 mg/L of ionic calcium—more concentrated than any other liquid calcium product on the market. It is specifically formulated to restore and maintain calcium levels found in natural seawater, which are essential for coral growth and skeletal development.

Reef Complete also includes magnesium and strontium in biologically appropriate ratios (100:5:0.1) to support balanced mineral uptake and prevent ionic imbalance. Unlike calcium chloride-based products that may contain ammonia, Reef Complete is blended at a higher pH to force ammonia to gas off, ensuring purity and safety.

Key Features:

– Delivers 160,000 mg/L of ionic calcium
– Includes magnesium and strontium in natural ratios
– Does not affect pH or cloud water
– Promotes coral growth, skeletal strength, and reef vitality
– Ideal for use with Seachem Reef Builder or Reef Carbonate

Product Specifications:

Brand: Seachem
Volume: 250 ml
Form: Liquid
Country of Origin: United States

Directions for Use:

Use 1 capful (5 mL) per 80 L (20 US gallons) twice a week. Each dose raises calcium by ~10 mg/L. Do not exceed 12.5 mL per 80 L per day. Monitor calcium levels regularly (ideal range: 380–420 mg/L). For best results, dose calcium and carbonate supplements on alternate days or at least 30 minutes apart.