Reef Crystals Salt - 3 Bag Box - Instant Ocean

Reef Crystals® Reef Salt is an enriched salt mix designed specifically for reef aquariums, delivering elevated levels of calcium, trace elements, and vitamins to support coral growth and long-term system stability. Built on the trusted Instant Ocean formula, it goes a step further—giving stony corals, coralline algae, and invertebrates the extra nutrients they need to thrive in a closed system.

The enhanced formulation helps promote faster skeletal growth, stronger coloration, and overall coral health, while also neutralizing trace heavy metals often found in tap water. Whether you’re running a mixed reef or SPS-dominant system, Reef Crystals provides a consistent, reliable foundation for your water chemistry.

Mixing is simple and repeatable. Just combine with dechlorinated tap water or purified RO/DI water, mix thoroughly, and adjust salinity as needed. While it can be used immediately, allowing the water to fully mix and aerate will give you the most stable results.

Recommended specific gravity is between 1.020–1.026 at 77°F, with approximately ½ cup per gallon producing a standard mix. Regular water changes—around 20% every two weeks—help maintain optimal water quality and replenish essential elements.

For best results, always mix saltwater separately before adding it to your aquarium.