Feature: 1. POWERFUL CLEANING BACTERIA: Aquarium salt effectively cleans the harmful bacteria in the fish tank and guards the health of ornamental fish. 2. FISH TANK CLEANING: Aquarium sea salt removes the dirt and odor in the fish tank, which can keep the fish tank clean and tidy environment. 3. WATER SOFTENING: Aquarium salt effectively softens hard water and provides soft water suitable for ornamental fish. 4. LONG LASTING AND DURABLE: After adding fish tank salt, it can release minerals continuously to provide the necessary nutrients for ornamental fish. 5. SPECIAL FOR FISH TANK: Fish tank salt is designed for ornamental fish and is safe to use, with no added substances to ensure the safety and health of fish. Specification: Item Type: Aquarium Salt Material: Salt. Package List: 1 Bag x Aquarium Salt