Question

We do not clean ponds or lakes, but an aquarium needs to be cleaned. Why?

We do not clean natural ponds or lakes whereas an aquarium or a swimming pool needs to be cleaned regularly. Why?

Answer 1

1. An aquarium is an artificial and incomplete ecosystem, i.e., it is a man-made ecosystem, and it does not contain all the components of a natural ecosystem.
2. For example, it does not contain soil and decomposers that break down the organic matter into simpler inorganic substances and act as a cleaner.
3. So, due to a lack of cleaners, the aquarium needs to be cleaned. In contrast, ponds or lakes are complete and natural ecosystems with all the components that keep them clean.
4. So, they are self-sustaining ecosystems.

Answer 2

1. Natural lakes and ponds are self-sustaining natural ecosystems where aquatic plants, microbes, and decomposers aid in waste recycling and water quality maintenance.
2. Algae, aquatic plants, and natural predators maintain a balance of nutrients and oxygen, avoiding an excessive buildup of waste.
3. Whereas swimming pools and aquariums lack a natural ecosystem. They lack the bacteria necessary to decompose waste, which causes dirt, algae, and other dangerous materials to build up.
4. Swimming pools must be regularly cleaned to maintain cleanliness and prevent the growth of harmful bacteria, even though chlorination is necessary to avoid microbiological contamination.