Features: EFFECTIVE ALGAE CONTROL: Formulated to effectively combats and remove algae growth in the aquarium, providing a clean and health aquarium environment for fish and other water lifes. Safe and Effective: Made from safe ingredients that will not harm fish, plants or beneficial bacterium in the aquarium, ensuring a health aquarium ecosystem. Easy to Use: Simple and convenient design, just add the right amount to the aquarium water to help control and prevent excessive algae growth. MULTIFUNCTIONAL FUNCTION: Not only removes existing algae, but also helps to prevent its recurrence, maintains water clarity and provides an aesthetically pleasing habitats for aquarium pets. Versatile Application: Ideal for tropical-fish, cold water fish, turtles and various ornamental fish, this solution offers comprehensive water treatments for different types of aquarium setups. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Package List: 1/2/3/4/5 Bottles Water Purification Tablets