When people started diving under the water, it must have been an exciting experience. Everything was different. The landscapes, mostly dominated by stones, did not look identical. Just a few metres further one thought one was in a different landscape.
As everyone knows, at a certain depth no colour from the sun gets through. Then everything appears blue. Nevertheless, the living beings (corals, starfish, fish) are colourful. Only when they reach the top, where the colour spectrum shows up again, one sees the colours of the different forms.
An experience that many people can no longer get out of their heads and have started to create their aquarium according to this model.
Such a work or art is called “Aquascaping”.