Aquarium size is basically a question of what size fish population is desired. Beyond that, this article assumes the desire for an aquarium is the enjoyment of its aesthetic qualities, and not its maintenance requirements. These two desires are factors that both have a direct effect on water quality and thus the health, happiness, and longevity of the wildlife. This article makes a point that, with regards to water quality, larger aquariums are better. There are other arguments for larger aquariums, such as avoiding stunted fish growth (certain species) and aggressive behavior, but these will be discussed in another article.