The more plants you have the hotter your greenhouse will usually be. A temperature control unit can be set to turn fans or blowers on and off at pre-determined intervals. They can also be set up to open and close air ducts in your greenhouse or grow room. As you progress in your hydroponic garden hobby you may also want to switch from an aquarium pump or bubbler system to a more advanced irrigation and drainage system for your garden. Burning hydrocarbon fuels, the use of dry ice, fermentation, decomposition of organic matter and the use of compressed bottled carbon dioxide can create the correct atmosphere for your plants to grow in. The temperature that you grow your plants in is also very important for their survival. If it is too humid for your plants the increase in respiration of the plant will decrease fruit life. There are many types plants that can be grown in a hydroponics system. Some plants will grow better in hydroponics system than others. Many growers use hydroponics systems to grow tomatoes, lettuce, watercress, cucumbers, herbs, and various other edible plants. Beginning growers will be satisfied with the quality of their crops, and the rates at which they will grow. Hydroponic gardening requires an energy source in order to grow. Usually, natural sunlight is used, but during the shorter and darker days of winter, many hydroponic gardeners use artificial lights to increase the intensity of light or to expand the daylight length. Different types of artificial lighting are selected for specific plant varieties and optimum plant growth characteristics. The nutrient solution is provided directly to them, which results in plant growth, which is more abundant. Incorporating hydroponics into an outdoor garden can help add interest and intrigue. The natural conditions available outdoors in the summer make it a perfect time to experiment with the various types of hydroponic cultivation. The Pros and Cons of Going Hydroponic Hydroponics is a Latin term, which literally means “working water.” What it means to horticulture is the growing of plants without soil. Hydroponic gardening is an exciting field that offers solutions to several problems faced in the world of food production.