Introducing the HiTauing 6 Pack Extra Small Filter Cartridges for Aqueon Replacement Fish Tank. These cartridges are specifically designed to fit the Minibow Aquarium Filter and come in three different tank capacity options of 1, 2.5, and 5 gallons. The cartridges are made with high-quality materials and are an ideal replacement for your aquarium filter. With HiTauing cartridges, you can be confident that your aquarium is getting the proper filtration it needs for a healthy and thriving environment. These cartridges are perfect for those who want to keep their aquarium clean without worrying about the condition of the filter. So, enhance your aquarium experience with HiTauing 6 Pack Extra Small Filter Cartridges.