Aquarium Systems Instant Ocean synthetic sea salt contains every necessary major, minor, and trace element and has no nitrates and no phosphates, so your tank will stay cleaner and healthier for your marine fish, plants, and invertebrates. It was developed through sophisticated biological and chemical testing, and every batch is analyzed to assure consistent high quality. Exceptional solubility, uniform particle size, and outstanding package value have made Instant Ocean salt the choice of aquarists for over 30 years. No other product outperforms Instant Ocean salt. As an added benefit, you will find that Instant Ocean sea salt is the fastest dissolving product available.
Size: 50 gallons.