API FRESHWATER AQUARIUM SALT, 33 OZ

API® AQUARIUM SALT is made with evaporated sea salt and is essential for your aquarium! Aquarium salt promotes fish health by improving gill function, making it easier for fish to breathe. It also provides essential electrolytes that fish need to reach peak coloration and vitality. These electrolytes may be lost each time you do a partial water change, and will need to be replenished.