Allows you to mix your own salt water. Make sure you use water that is distilled or has gone through a reverse osmosis filter. You can also use pre-made salt water with your jellyfish, which is available at most aquarium shops. Full instructions for making your own salt water are here.
Makes 2 gallon of salt water. Good for TWO 20% (1 gallon) water change on the Desktop Jellyfish Tank.
**If salt is immediately needed, a local pet-store will have a similar brand of "Sea Salt Mix" (also known as Ocean Salt mix) available for purchase.