EcoSphere Closed Aquatic Ecosystem with Revolving Base

Small Pod Ecosphere (5. 25 #39; tall) with turntable base. This fascinating enclosed world contains 3 to 4 marine shrimp, algae and micro-organisms. Made from hand blown glass, each Ecosphere is a completely enclosed, self-sustaining little world. The Ecosphere only needs indirect light and comfortable room temperature (between 60F and 80F. ) The Ecosphere works on the basis that a closed system recycles its nutrients and does not produce excess waste. The shrimp consume the algae and micro-organisms and they, in turn, break down the shrimp waste. External light, either artificial or natural, keeps the algae growing. There is no feeding or water changes required.