SEACHEM REEF ADVANTAGE CALCIUM 500ml

Seachem Reef Advantage Calcium is a concentrated, ionically balanced calcium supplement designed specifically for reef aquariums. It safely raises and maintains calcium levels essential for coral growth, skeletal development, and overall health in marine systems.

Unlike many calcium supplements, Reef Advantage Calcium includes magnesium and strontium in natural ratios to prevent ionic imbalance and calcium precipitation. It contains no ammonia or nitrate, making it safe for all reef inhabitants.

Key Benefits:

Promotes healthy coral and coralline algae growth

Supports skeletal development in SPS/LPS corals

Helps maintain proper calcium and carbonate balance

Includes magnesium and strontium for ionic stability

Recommended Calcium Levels:
380–420 mg/L (ppm)

Dosage (as needed):

Use 1g (about 1/8 teaspoon) per 150 litres to raise calcium by ~12 mg/L.
Adjust according to test results. Dissolve in freshwater before dosing if adding directly to the tank.

Available Sizes & Approx. Weights:

250g – ±280g

500g – ±560g

1kg – ±1.1kg

2kg – ±2.2kg

4kg – ±4.4kg

Elevate your reef care routine with Seachem Reef Advantage Calcium – trusted by reefers for consistent, balanced results.