ITEM NAME:Marimo Ball Live Algae Aquarium Plant Fish Tank Landscape Ornament 3-4c ZGE Descriptio n Features: Green living moss ball suitable for cold or tropical aquariums. Excellent gift for your friend or loved ones to signify everlasting love.... The Japanese believe that will bring good luck. Hence, they grow it in a glass bottle with just some water & ceiling light. moss ball is a very popular plant in Japan. Negligible maintenance required. No carbon dioxide injection required for healthy growth. Shrimp safe. Great for getting rid of pond algae and algae in the aquarium because the moss ball out competes the algae for nutrients since they have similar diets. Also in your pond drop a couple in and let them remove nutrients that cause that ugly green water. This will also let you get rid of algae the natural way. Specifications: Material: Plastic + Live Seaweed Color: Green Size: 3-4cm/1.18-1.57" Package Included: 1 * Moss Ball Note: 1.Due to the light and screen setting difference, the item's color may be slightly different from the pictures. 2.Please allow slight dimension difference due to different manual measurement. 3.When entering the cylinder, such as algae ball suspended in the water, the algae ball placed in the water squeeze by hand, out of the air can sink. We offer you what you need! 1 x Marimo Moss Ball.1 x Marimo Moss Ball. Great for getting rid of pond algae and algae in the aquarium because the moss ball out competes the algae for nutrients since they have similar diets. Also in your pond drop a couple in and let them remove nutrients that cause that ugly green water.