Color as shownSize: 8.4 x 8 x 5.9 cm Weight: 130 g Mechanical and biological filtration filter - Equipped with small diffusion stones, filters and bio-ball filter materials to provide the water with the necessary oxygen and a calm to ensure working environment.The first separator is a sponge for mechanical filtering, the second separator is a clay ball filter for biology, the last layer is the base connected to the air tube.Innovative design, ultra purpose: save space in the aquarium, beautiful filter to the air pump through the air pipe, and the air flow from the air pump is injected into the filter.The vacuum air expels the water flow through the sponge and clay ball to achieve the effect of water filtration and oxygenation.Safe for fish, suitable for crab ponds , breeding ponds, goldfish, discus, guppies, wild baby fish or other fish
