What other factors affect the number of fish kept in an aquarium?
The maximum number of living animals that may be safely kept in a closed environment such as a fish tank is usually referred to as the “carrying capacity” of that system. In science, the carrying capacity of a closed environment is usually expressed in units of body weight (mass). The total weight of all of the animal, plant and microbial life in a given environment is called the “biomass.” Biologists can calculate a close approximation of the carrying capacity of any closed aquatic system by measuring the levels of dissolved gases and metabolic organics in the water and calculating the oxygen consumption and waste production of the animals to be kept. They then use these values in mathematical formulae to determine the maximum mass of animal life the closed environment can support. The behavioral and physiological needs, as well as the waste production of the desired animals to be kept, are also factored into other calculations to arrive at an even more precise value. We aquarium hobb