We Do Not Clean Natural Ponds Or Lakes but an Aquarium Needs to Be Cleaned Regularly. Why is It So ? Explain. - Science

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We do not clean natural ponds or lakes but an aquarium needs to be cleaned regularly. Why is it so ? Explain.

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Aquarium is an artificial ecosystem that contains fishes as living organisms. In natural ecosystems, other organisms are also present in sufficient number to maintain a balance. In natural aquatic ecosystem, uneaten food or fish waste turns into ammonia and then bacteria convert these pollutants into non-toxic “nitrates”. Therefore, if the water of aquarium is not changed regularly, then wastes could accumulate to dangerous level, which can lead to the death of fishes.

Concept: Food Chain
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2014-2015 (March) All India Set 2

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