About This

• Naturally increases water hardness and balances PH/KH/GH: Made from crushed coral to improve water quality and keep PH/KH/GH stable for healthy fish
• Keeps water clear and promotes a healthy tank: Porous coral helps filter debris and maintain a clean, natural environment
• Includes pH test strips and a filter bag: Easy to monitor water pH and place the coral in your tank or filter
• Pure natural material, easy to prepare: Slight dust may be present—just rinse with water before use
• Versatile for various aquarium setups: Great for freshwater tanks, as substrate, or filter media to improve water conditions.