This Instant Ocean Sea Salt creates the ideal marine aquarium. The salt dissolves fast and is preferred by experts; especially for a saltwater fish tanks. Use this exceptional blend in your saltwater fish tank to provide all the necessary trace elements. The end result is a clear solution in minutes and reaches proper pH quickly. Features: Fast dissolving; nitrate and phosphate free Includes: 1 Bag of Sea Salt Intended For: Salt Water Fish Tanks Material(s): Salt Color: White Package Weight Expands To: When mixed with water, yields 160 gallons Compatible With: All Salt Water Aquariums Size: 160 Gal.