YauYukii Water Trough Purifier Cube Livestock Charcoal for Fish Tank Super ​Strong Filtration and Absorption ​Eco-Aquarium Filter ​Media Cubes ​for Ponds, Horse Trough, Water Tan, 4X4X4 Inch

*【ACTIVATED CARBON HONEYCOMB STRUCTURE】: Our filter cube is made of natural bamboo charcoal material. The honeycomb structure composed of 1600 small holes greatly increases the contact area with water and makes the filtering effect better.

*【REUSABLE】: The honeycomb activated carbon filter can release toxic substances by placing 5~ 6 hours in direct sunlight after using for 3 months, then it can be used repeatedly.

*【STRONG ADSORPTION】: This filter with strong adsorption and decomposition can absorb the dirt and odor, and oxidize the adsorbed substances, improving the adsorption efficiency while extending service life.

*【FISH TANK WATER PURIFIER】: Effectively filter dirt, cloudiness and odor, maintain the clear and healthy water quality for your water pets habitat. Your fish tank will stay clean for months!

*【EASY TO USE】: Rinse with clean water or soapy water before use, and put water purifier cube in the water tank. Recommendations for use: Put the eco-aquarium filter near the inlet of the fish tank water pump; put a piece of activated carbon cube in every 150L/33 gallons of water to filter, the effect is better.