DONGKER Mini Aquarium Filter, Small Fish Tank Bio Sponge Filter with Bio-Media Ceramic Balls for Breeding Fry Betta Shrimp Tank 2-5 Gallon

• 【3-Stage Filtration System】powerful triple filtration system with physical and biochemical filtration keeps water clear over time, reducing the need for frequent water changes. Built-in small air bubble stones, filter stones, a biochemical sponge, and activated carbon filter media.
• 【Prevents Fish from Inhalation】 This small sponge filter features a seamless design, ensuring fish safety with no moving parts, protecting small fish from inhalation.
• 【Aeration】 This fish tank filter keeps the water clean and creates air bubbles to agitate the water. It gently agitates the water, and the filter air stones increase oxygen solubility in the water, promoting water circulation.
• 【Easy to Use】 Requires an air pump (not included). Place inside the aquarium. It has a strong suction cup on the bottom. Connect the air pump to the air outlet.
• 【Wide Application】 Suitable for a variety of ornamental fish breeding, reproduction, and rearing juveniles, including small fish, fry, and aquaculture.

Welcome to my store , Hope you have a pleasant shopping trip! Features: 1.Filtering air stones can increase the solubility of oxygen in water. The airflow of the oxygenation pump comes out from the small hole at the bottom of the water fairy. The pipes of the water fairy are relatively slender and the bubbles can swarm upward in the pipe, thus pushing the water in the pipe. 2.The entrance of the water flow is in the middle of the biochemical filter cotton. After the water flow passes through the biochemical filter cotton, it has a preliminary physical filtering effect. The feed and debris in the fish tank are retained by the biochemical filter cotton, and then there is still raw nitrification on the biochemical filter cotton. other microorganisms will further decompose the filtered dirt 3.Fish tank filtration and purification improves water quality. Circular filtration, purification, stabilization of water quality, and oxygenation increase dissolved oxygen in fish tank water. Specifications: Colour: Black Material: plastic shell + biological filter material Size: S: 11.1cmx4.5cmx3.9cm/4.3"x1.7"x1.5"(LxWxH), L: 15.5cmx7.0cmx5.7cm/6.1"x2.8"x2.2"(LxWxH). Applicable fish tanks: fish tanks below 30cm (about 2-5 Gallon) Weight:150g Package List: 1x Aquarium Bio Sponge Filter Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We the style is the same as shown in the pictures. 2. Please allow 1-2cm slight dimension difference due to different manual measurement.