PURPOSE: To enable the growth of a plant and an aquatic animal under optimum conditions in a short time at the same time by circulating a nutrient liquid controlled to the optimum state and using the liquid for the hydroponic culture and the breeding of the animal while controlling the atmospheric conditions.

CONSTITUTION: Climatoron 1 is an apparatus for controlling the atmospheric conditions in a house 5 to the optimum state for a plant 8 and the carbon dioxide concentration, etc., in air are controlled by the apparatus. A nutrient liquid preparation apparatus 4 prepares the nutrients necessary for the hydroponic culture apparatus 2 for the hydroponic culture of green vegetables 8 and supplies nutrients necessary also for reptiles 9 and fish 10. The culture water prepared by the nutrient liquid preparation apparatus 4 is sent to the hydroponic culture apparatus 2 with a pump 7 to supply the vegetables 8 with necessary nutrients. The nutrient water passed through the hydroponic culture apparatus is supplied to the culture pond for reptiles 9 or fish 10. The hydroponic culture apparatus 2 for growing vegetables 8 and a culture pond 3 for breeding reptiles 9 and fish 10 are placed in a house 5 and the conditions in the house are adjusted to optimum states for the vegetables and the animals by the climatoron 1 and the nutrient liquid preparation apparatus 4 to enable the simultaneous growth of vegetables 8 and the reptiles 9 or fish 10.