Introducing our AXXXESTFilter Foam Sponges, the ultimate solution for your aquarium filtration needs. Made with high-quality filter media, these filter sponges are designed to provide efficient mechanical and biological filtration, ensuring a clean and healthy aquatic environment for your fish.With a large size of 7.45"x4.72"x1.77" , our filter pads can be easily cut to fit any aquarium or pond filter. To determine the best fit, you can use the volume calculation formula: 7.45(L)x4.72(W)x1.77(H) = 62. The bigger the parameter, the bigger the sponge, giving you the best value for your money.Our sponge filters feature a 50PPI (Pores Per Inch) rating, meaning they have a high number of pores per unit area. This allows for excellent filtration and ensures that large amounts of waste are trapped, preventing them from clogging the filter. For optimal results, we recommend using a combination of different size sponges to maximize the filtration efficiency.One of the key benefits of our filter pads is that they are dye-free and completely safe for your aquatic pets. You can rest assured knowing that these sponges will not harm your fish or any other aquatic inhabitants in your tank.Our filter pads are not only effective but also highly convenient. They are designed to be reusable and durable, allowing you to clean and use them multiple times. Regular cleaning is recommended to maintain their effectiveness and prolong their lifespan.Additionally, our sponges come vacuum-sealed and compressed, saving you valuable storage space. Simply unpack the sponges and follow the instruction steps to restore them to their original size. Once restored, they are ready to be used in all types of aquariums.Upgrade your aquarium filtration system with our AXXXESTFilter Foam Sponges. Experience the benefits of superior mechanical and biological filtration, easy customization, and long-lasting durability. Create a pristine aquatic environment for your fish with our high-quality filter sponges.