Aquatic Arts 1 Super Giant Marimo Moss Ball 2.5 to 3.5 inches or larger (about the size of a baseball) after being in water for 4 hours A moss ball this size is over 20 years old making it extremely rare to find Bright green and healthy with a Live Arrival Guarantee Can be kept in any freshwater aquarium, or even a vase, jar, terrarium, or fish bowl One of the easiest aquatic plants to take care of; have been known to live for 200 years or longer