Instant Ocean Reef Aquarium Salt Mix, 189 L, with Extra Calcium & Trace Elements

Instant Ocean Reef Crystals is reef aquarium salt formulated to prepare up to 50 gallons (189 L) of saltwater for reef aquariums.

• Reef elements at higher concentrations than natural seawater — supplies elements for a captive reef environment.
• Extra calcium — encourages growth of large and small polyp stony corals and coralline algae.
• Extra trace elements — add vital nutrients to the prepared saltwater.
• Extra vitamins — help promote growth and survival of corals, anemones and other invertebrates.
• Neutralizes traces of heavy metals — helps address metals often present in tap water.

Reef aquariums need prepared saltwater suited to corals and other invertebrates. Reef Crystals is made for this purpose, whether you are preparing water for a new reef setup or mixing water for an established captive environment. Its formula combines elevated reef elements with a preparation method using ordinary dechlorinated tap water.

What reef aquarium life is Reef Crystals formulated for?

Instant Ocean Reef Crystals is formulated for reef aquariums and provides extra calcium, trace elements and vitamins. The calcium is intended to encourage growth in large and small polyp stony corals (LPS and SPS) as well as coralline algae. Added vitamins help promote the growth and survival of corals, anemones and other invertebrates in a captive environment.

• Made specifically for reef aquarium use.
• Contains essential ocean reef elements at higher concentrations than natural seawater.

How do you mix Instant Ocean Reef Crystals?

Mix ½ cup (118 mL) of Reef Crystals per gallon (3.8 L) of ordinary dechlorinated tap water. Stir vigorously to combine the salt and water; use the prepared water immediately or aerate it until it reaches oxygen/carbon dioxide equilibrium.

• The package size is intended to prepare up to 50 gallons (189 L).
• Follow the product label for complete use directions.

How does Reef Crystals differ from general-purpose sea salt?

Its reef-focused formula has essential ocean reef elements in concentrations greater than those found in natural seawater, with extra calcium, trace elements and vitamins. It also neutralizes traces of heavy metals often present in tap water, making this a salt mix designed around reef aquarium needs rather than a general aquarium description.

• Instant Ocean sea salts and water care products are used exclusively by many leading large-scale aquariums and research facilities across the country.
• Use dechlorinated tap water as the mixing water.

Reef Crystals suits aquarium keepers preparing saltwater for corals, anemones, coralline algae and other reef invertebrates. Its 50-gallon yield and stated mixing rate make it a practical choice for preparing reef aquarium water in measured batches. It is formulated specifically for reef aquariums, with added calcium, trace elements and vitamins.