Question

why do you clean aquarium where river ocean and do not need why

Answer 1

River and oceans are not important to clean regularly because they are the natural habitat and they have the organism which clean it by themselves

But aquarium is a artificial Habitat so it required to be cleaned because it does not have the bacterias to clean it by itself.

MARK AS BRAINLIEST

Answer 2

We need to clean it because the aquarium doesn't contains decomposers and it always need to clean aquarium and river and ocean don't need to be cleaned because they contain the decomposers which ate dead organisms.