Created by professional aquarists at Rainforest Aquarium, LLC, the Shrimp Bubble is the most captivating, easy to care for, semi-closed aquatic shrimp ecosystem, where marine shrimp interact with other natural elements to form an amazing biosystem that exists inside a glass bubble and self-sustains itself for an extended period of time. It contains live marine shrimp (opae ula), live algae and microorganisms. No Frequent Water Changes, No Daily Feeding, No Water Filtration. Just provide your Shrimp Bubble with indirect natural or artificial light and enjoy observing its gradual development.