Question

aquarium needs to be cleaned once in a while whereas ponds or lakes do not require any cleaning. explain. ​

Answer 1

Answer:

In the Aquarium the uneaten food as well as the waste generated by the fishes mixes with the water and is left untreated due to the lack of decomposers. The waste materials thus accumulate in the water making it toxic. Hence an aquarium has to be cleaned after regular intervals.

Explanation:

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Answer 2

Answer:

Explanation:

In the Aquarium the uneaten food as well as the waste generated by the fishes mixes with the water and is left untreated due to the lack of decomposers. The waste materials thus accumulate in the water making it toxic. Hence an aquarium has to be cleaned after regular intervals.