Instant Ocean Reef Crystals Reef Salt 160 gallon bucket $34.92

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From the manufacturer
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Instant Ocean Reef Crystals Reef Salt for Reef Aquariums
Product Details:

Specially formulated for use in reef aquariums – contains essential ocean reef elements in greater concentrations than natural sea water
Contains extra calcium to ensure stony coral and coralline algae growth, extra trace elements to provide vital nutrients and extra vitamins to support vigorous growth and survival of corals, anemones and other invertebrates in a captive environment
Neutralizes trace heavy metals often found in tap water
Product description
Size:160-Gallon
Instant ocean reef crystals are easy-to-use and provide all of the necessary elements required for a healthy coral environment. extra calcium, trace elements and vitamins promote growth and support the health of a variety of corals; including stony corals, coralline algae, anemones and other invertebrates. built-in metal detoxifier goes a step farther to neutralize traces of heavy metals often found in domestic water supplies.

https://www.amazon.com/Instant-Oc...B000HCLNQG