Qanvee Bio Sponge Filter is a multi-filtration equipment for shrimp or fish tank. It can be used with a combination of mechanical, chemical and biological filtration which creates clean and clear water for the aquarium. Features: – More quiet and delicate: optimized outlet piping design, greater air output, more delicate foam and lower noise. – All part use environmentally friendly materials, the components are made of high quality food grade plastic, safe and non-toxic for livestock – More elegant and exquisite – High quality suction cups, durable – Adjustable length of pipe – use in different tank height – Dual filter media containers: can hold a varieties of filter media, with better water purification and activation effect. Qanvee Bio Sponge Filter comes with 2 models: 1) QS100A – can hold 100g filter media 2) QS200A – can hold 200g filter media