Xinyou XY-280 Super Biochemical Sponge Filter

This is the retail packaging for the Xinyou XY-280 Super Biochemical Sponge Filter, a highly regarded and essential aquarium filtration unit. Driven by an external air pump, this internal submersible filter provides efficient mechanical and biological filtration, making it a staple for shrimp tanks, breeding setups, and small-to-medium tropical fish aquariums.

​Detailed Description

​Packaging & Branding: The product comes in a light green and white cardboard box featuring the distinct XINYOU logo in red and blue. The front panel prominently displays a graphic of the fully assembled black sponge filter, alongside an illustrated underwater scene with community fish like Discus and Tiger Barbs swimming among aquatic plants.

​Filtration Mechanism:

​Mechanical Filtration: The high-density, multi-layered black foam sponge acts as a physical barrier trap, collecting suspended debris, uneaten food, and particulate matter from the aquarium water without trapping tiny inhabitants.

​Biological Filtration: The porous sponge structure creates a vast surface area that fosters the colonization of beneficial nitrifying bacteria. These bacteria actively break down toxic ammonia and nitrites into safer nitrates.

​Key Design Features:

​Gentle Air-Driven System: Because it operates via an air stone and lift tube connected to an air pump, it produces a gentle water current and excellent oxygenation. This makes it completely safe for delicate fry (baby fish), shrimp, and slow-swimming fish like Betta fish.

​Weighted Base: Features a heavy, solid black plastic base that anchors the sponge securely to the bottom substrate of the tank, preventing it from floating.

​Model Designation: XY-280, typically rated for small to medium-sized aquariums (up to approximately 20–30 gallons depending on bio-load).