Instant Ocean Reef Crystals Reef Salt Box Aquarium Marine Salt – 50 Gal

• Contains essential ocean reef elements in concentrations greater than those found in natural sea water
• Sustains thriving reef aquariums that are normally depleted quickly of their valuable substances
• Offers extra calcium to encourage the growth of large and small polyp stony corals as well as coralline algae
• Extra trace elements and vitamins to provide additional vital nutrients and promote healthy growth
• Made in the usa

INGREDIENTS: Sea salt