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'Forest' in tank helps improve indoor environment

Updated: 2014-11-28 08:26 (Ecns.cn)
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'Forest' in tank helps improve indoor environment

A woman looks at a fish tank in which aquatic weeds are planted at a market in Jinan, East China's Shandong province, Nov 26, 2014. Such tanks featuring abundant green aquatic plants have become hot items among local consumers who used it as air purifiers at their homes. [Zhang Yong / China News Service]

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