Support a healthy biological filtration system with API Bacti-Stars Filtration Media. These specialised filtration media are designed to establish and maintain beneficial bacteria colonies, helping to create a balanced and healthy aquarium environment. Suitable for freshwater, marine and reef aquariums, they are ideal for both new aquarium setups and ongoing maintenance. API Bacti-Stars provide an excellent surface for nitrifying bacteria to colonise, promoting the natural biological filtration process. As beneficial bacteria become established, they help break down harmful ammonia and nitrite, contributing to improved water quality and healthier conditions for your fish and aquatic life. Supplied as a pack of four, API Bacti-Stars are easy to add to compatible filtration systems and help maintain stable biological filtration over time. Promotes Biological Filtration – Encourages the growth of beneficial nitrifying bacteria. Supports Healthy Water Quality – Helps remove toxic ammonia and nitrite through natural biological filtration. Ideal for New & Established Aquariums – Suitable when starting a new aquarium or maintaining an existing one. Freshwater, Marine & Reef Compatible – Suitable for a wide range of aquarium environments. Pack of 4 – Includes four Bacti-Stars filtration media for long-lasting biological support. Specifications: Brand: API Product Type: Biological Filter Media Pack Size: 4 Bacti-Stars Suitable For: Freshwater, marine and reef aquariums Application: Biological filtration and beneficial bacteria colonisation