This model shows the concentration (cc/L) of oxygen in an aquarium containing a goldfish over time, like the experiment described by Hart and Fry (1948). Fully oxygen saturated water flows into the aquarium at a constant flowrate. The aquarium already contains an amount of oxygen saturated water. The total oxygen concentration of the water in the aquarium is altered by the breathing goldfish. The rate (cc/kg/hour) of oxygen compsumption is dependent of oxygen, temperature and weight of the goldfish (Fry and Hart 1948). The temperature vs. oxygen-saturation curve is from an uniscense gas table.
