Natural materials: Made from selected natural coral materials, improve aquarium water quality, decompose impurities, improve water quality, It provides a stable and healthy environment for fish.

Multi-Purpose Use: These crushed coral stones not only suitable for freshwater aquariums, but also works well for pond filtration, making water quality cleaner and healthier.It can also be used as a decorative accessory for aquariums and ponds.

Quality construction:It can effectively improve water quality and stabilize PH value, bringing health to your aquatic pets.

Convenient and Durable: This set includes a mesh bag that can be used to hold these fish tank filter media, making it easy to use. These crushed corals are very durable and resistant to aging. This durability means you don't have to replace broken corals frequently.

Preparation Instructions: To achieve good results, please clean before use, preferably with water from a fish tank or clean water. Report an issue with this product or seller