Fangrui Product Details 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 Easy To Clean And Maintain Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.