Features: 1. The unclean water tank can negatively impact the health of your farm animals. Eliminate the need for frequent water changes with cloudy tanks. The Water Purifier Cubes are ultra-absorption activated carbon blocks designed to maintain clean drinking water for your livestock. 2. Water Purifier Formula: Made from honeycombed ultra-absorption activated carbon blocks, these cubes effectively filter dirt, cloudiness, and odors from livestock water troughs. With a solid composition, they contain no powder or impurities and will not discolor the water. 3. Safe for All Animals: Specifically designed to provide clean water for various animals, including fish and reptiles. For animal use only. 4. Easy to Use: Simply place the cube in the water tank. Rinse with warm water before initial use. The cubes are reusable and long-lasting with proper care, but it is recommended to replace them every 6 months to ensure optimal water quality. One cube treats up to 150 liters of water. Depending on tank size, multiple cubes may be required. 5. Help ensure clean drinking water for farm animals and aquatic pets with Water Purifier Cubes. Note: This product is not intended for purifying water for human consumption. Notice: Actual color may vary slightly due to differences in monitor displays and lighting. Allow for a 1–3 cm variation due to manual measurement. Specification: Material: Natural activated carbon, sepiolite clay mineral Size: 10 x 10 x 10 cm Includes: 1 / 2 / 4 (optional) x Water Purifier Cubes