100% Natural Aquarium Sea Salt This all-natural salt is intended for use in freshwater aquariums and for brackish aquariums for fish such as guppies to add natural electrolytes, improve gill function, reduce stress and more. Important Note: Aquarium Salt does not evaporate or filtered out. Use as directed. Add more salt when performing a water change. For example, if you remove five gallons of water during a water change then add only enough salt for five gallons. Use when setting up a freshwater aquarium or fishbowl, performing water changes and/or treating diseases. Naturally coarse aquarium salt collected from evaporated water from the sea. For aquariums add 1 Tablespoon per 5 gallons of water. For fish, bowls add 1/2 Tablespoon per 1 gallon of water. For Brine, Shrimp cultures add 1 Tablespoon per 500 mL. Key word: aquarium sea salt, pet store