Color as shown Size: 17 x 13cm Weight: 100g 【Easy to Use】 Just use a 4mm Air hose, connect one end to the air hose. to the pump air and the other end to the filter. Set it above or below the waterline. 【Fine Removable Sponges】You can easily remove the 2 sponges from the filter to clean or replace it. Both sponges are 60 ppi thin, which means more surface area for beneficial bacteria. Do not use tap water to clean, simply rinse or squeeze the sponges with aquarium water. 【Multi-Filtration Functions】 The aquarium filter combines biofiltration, oxygenation and physical filtration in one. Sponges catch larger dirt particles and clean water without catching small fish. Ceramic biofilters help to remove pollutants and ensure cleanliness. Extra to give your fish or shrimp a healthy life.