The Mini Filter is a must-have accessory for your fish tank. It is designed to keep the water clean and maintain good water quality stability. With its principle of biological filtration and multi-level filtration system, it effectively cultivates high-density nitrifying bacteria to ensure a clean and healthy environment for your fish. The multi-layer design of this filter enhances its filtering efficiency. The bottom layer is made of biochemical sponge, followed by a layer of gas stone, and finally, the outlet is covered with a funnel. This combination ensures a thorough filtration process, resulting in better water quality. Made of environmentally friendly plastic, the biochemical sponge filter is not only strong and durable but also safe for your fish. It is built to last and can withstand regular cleaning and installation. The filter also comes with a powerful suction cup, making it easy to install and maintain. This Mini Filter is suitable for various applications in fish breeding and cultivation. It is especially ideal for ornamental fish breeding, breeding, and young fish cultivation. Whether you have small fish or fry, this filter will provide the necessary filtration to keep them healthy and thriving. Package includes: 1 Mini Filter, 1m Rubber Hose Key Features: Biological filtration for clean and stable water quality Multi-layer design for enhanced filtering efficiency Made of environmentally friendly plastic for durability Powerful suction cup for easy installation and maintenance Suitable for ornamental fish breeding and young fish cultivation Package includes Mini Filter and Rubber Hose