There is no need of clean ponds and lakes in natural ecosystem but there is a need to clean Aquarium regularly Why?
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your point is wrong there is a need of cleaning for ponds and lakes
GKEXPERT:
If it is clean then no need but dirty then it will be difficult pond resindent survive
yes you r agreeing with my sentence that pond need to be cleaned instead of aquarium as the hotel cant take placs of our house
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We do not clean ponds or lakes , but an aquarium needs to be cleaned. ... Hence an aquarium has to be cleaned after regular intervals. On the other hand, a pond or a lake ecosystem is a natural ecosystem and the types of organism present in it is balanced.
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