【Compatibility Of Aquarium filter media】 The Three-Stage Filtration Tank Filter Maintenance Kit is designed to be compatible with Seachem Tidal 55 Gallon Power Filters. 【Upgraded Design Of Aquarium filter Maintenance Kit】Compared with traditional activated carbon filter media, this activated carbon filter media adopts a three-layer structure design: activated carbon layers on both sides and a sponge filter layer in the middle. It integrates filtration and adsorption functions into one, featuring larger filtration capacity, better water circulation efficiency and stronger adsorption capacity. 【Multi-Stage Filtration System】 The foam filter traps suspended particles, the double-layer activated carbon filter improves water clarity, and the porous ceramic rings assist in filtration. 【Replacement Frequency】It is recommended to replace the filter sponge every 4-6 weeks. Adjust the sponge replacement frequency according to the usage of each fish tank. 【Package Contents Of Aguarium Media Maintenance Kit】Our Aquarium filter Maintenance Kit package includes all necessary filter media, including 4 pack ceramic rings,4 pack carbon filter,4 pack foam filter and 2 cleaning brushes ensuring your aquarium maintains optimal water quality.