Specifications:-Type 1: XY-2880Size: 14*6cm/5.5*2.4inchColor: GreenCotton ball size: diameter 4.5*6CM (single-head)Suitable tank: ≤80L -Type 2:XY-2881Size: 12*14cmColor: GreenCotton ball size: diameter 4.5*6CM (single-head)Suitable tank: ≤100L -Type 3:XY-2882Size: 12*14cmColor: GreenCotton ball size: diameter 4.5*6CM (dual-head)Suitable tank: ≤200L -Type 4:XY-2883Size: 9*22cmColor: BlackCotton ball size: diameter 4.5*6CM (single-head)Suitable tank: ≤250L -Type 5:XY-2885Size: 15*16cmColor: BlackCotton ball size: diameter 4.5*6CM (dual-head)Suitable tank: ≤100L  Feature:1.Made of food-grade materials, Eco-friendly bio filter sponge and works great without noise2.Great way to clean and oxygenate your tanks3.Ribbing shape sponge holds a lot of beneficial bacteria4.sponge filters comes with a media container which ceramic bio filter media inside, will help to remove harmful substance and increase oxygen level in your tank5.Can be used with different filter media to enhance water quality.6.Air-water outlet is adjustable so you can change direction and height of the water flow7.All parts of the sponge filter are detachable so as to clean8. Multi-functional filter appearance is patented, using environmentally friendly sponge9. The filter bucket can replace other filter materials to increase the filtration effect. The filter ceramic ring effectively adsorbs harmful substances, making the water oxygen content higher.10. Multi-function filter for all kinds of small tropical fish, such as colorful fairy, crystal shrimp, water grass tank, etc.
 Instructions for use:-- This product needs to be connected with the air pump. The air pump should be placed at the top of the aquarium to prevent backflow to the air pump due to power outage.-- Soak for 5 minutes in the water of the aquarium before use, it will be easy to sell bacteria and bacteria. Colony rinse sponge must be water in the aquarium, do not use hot water

Package included:1*Aquarium Filter