Options	Size	Details
XY2008: 2-Layer Fan-shape (Stretchable Height)	Semidiameter of Fan-shape:3.03inch/7.7cm (with Stretchable Total Height:4.64-6.30inch/11.8-16cm), Air Driven, Need connect to Air Pump(NOT Included). (Please you can also find more measurement details in the photo).	Air Driven, Need connect to Air Pump(NOT Included) - Just simply install an airline into the top unit and turn on your air pump - Excellent for small size fish tank, as the filter produces minimal current and prevent small or weaker fish or animal from being drawn into the filter. Give your fish pet a security habitat!
XY2010: 4-Layer Fan-shape (Detachable)	Semidiameter of Fan-shape:2.91inch/7.4cm (with Detachable Tube, Total Height:10.8inch/27.5cm), Air Driven, Need connect to Air Pump(NOT Included). (Please you can also find more measurement details in the photo).	Air Driven, Need connect to Air Pump(NOT Included) - Just simply install an airline into the top unit and turn on your air pump - Excellent for small size fish tank, as the filter produces minimal current and prevent small or weaker fish or animal from being drawn into the filter. Give your fish pet a security habitat!
XY2011: 2-Layer Square-shape (Stretchable Height)	Side-length of Square-shape:3.03inch/7.7cm (with Stretchable Total Height:4.01-5.98inch/10.2-15.2cm), Air Driven, Need connect to Air Pump(NOT Included). (Please you can also find more measurement details in the photo).	Air Driven, Need connect to Air Pump(NOT Included) - Just simply install an airline into the top unit and turn on your air pump - Excellent for small size fish tank, as the filter produces minimal current and prevent small or weaker fish or animal from being drawn into the filter. Give your fish pet a security habitat!

The aquarium filter with a multi-layer filtration system of bio sponge and bio stone media has a much larger inner surface area. The filter sponge can effectively absorb the fine particles and fish waste, and the bio stones can purify the water, keeping your fish tank crystal clear. Also, the air infusion section produces tiny bubbles which increase the oxygen of water.

Material: High quality durable ABS plastic with Bio fibre structure sponge+stone media, eco-friendly, odorless, 100% free from toxins. Good for both freshwater and saltwater tank. And It can be reused after cleaning.

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