Enhance the health of your aquatic life with these 6-inch long, large aquarium fish tank filter media bio ceramic Blocks. Made by NEZO, these bars are designed to work with all water types and can hold up to 100pcs per box. These bio bars are perfect for creating a healthy and clean environment for your fish and aquarium. Manufactured in China, these bio bars are suitable for all kinds of aquariums and are an essential accessory for any pet owner. Use them to maintain the quality of the water, support the growth of beneficial bacteria, and keep your fish happy and healthy. Get your hands on these bio bars today and give your aquatic friends the best care possible.