HoveeLuty Filter Mat, Fish Tank Filter, Filtration Foam Aquarium Fish Tank Biochemical Sponge Pad Mat 50x50cm Black - Air Ponds Cleaner Aquarium Conditioner Roll Water Sponge

Sponge filters provide mechanical and biological filtration, trap large amounts of waste, and do not clog easily. The size of the pores is measured by the number of pores in the unit area (PPI), the higher the PPI, the more pores in the sponge. It is recommended to use a combination of different size sponges for the best effect.Aquarium Filter Fish Tank Sponge Filter Large size 50 x 50 x 2cm filter pads are available to be cut to fit your filter for any aquarium or pond filter. Fish Tank Sponge Filter Aquarium Sponge Regular cleaning. Reusable and after cleaning. Aquarium Sponge Sponge Filter Dye-free and safe for aquatic pets. Filter pads are usually used as pre-filters for wet/dry filters, catch basins, and tank filters. Sponge Filter Fish Tank Filter Sponges Vacuum sealed and compressed packaging, save space and easy to store, suitable for all types of aquariums. (Unpack first, then restore the size as per the instruction steps, and then it will be ready for use.) Fish Tank Filter Sponges Aquarium Filter Foam