The basic items you need after you decide on either a grow room or greenhouse include a temperature control unit, exhaust fan, heating mats, light fixtures for your blue and red spectrum lights, an aeration system (an aquarium system works well for small gardens), pearlite, marble and Styrofoam work well as a beginning medium and rockwool, oasis or Rapid Rooters. If it is too humid for your plants the increase in respiration of the plant will decrease fruit life. A very dry climate is not good for most plants either. The ideal temperature for your plants will be between 40 to 97 degrees Fahrenheit. The actual temperature for the particular plant you are growing will vary. In areas where food is traditionally produced, but where fields are over crowded or stripped of their nutrients, hydroponics is a way food can be produced using a minimum of space and resources. Hydroponic growth leads to an increase in production over traditional farming in two ways. For one, hydroponic gardening just plain saves space. Many biological insects will not survive if the temperature is too hot, or if there isn’t a good source of water. Other ways to protect your hydroponic produce against spider mites include using non-toxic yellow sticky cards. The cards are useful for monitoring spider mites and many other small bugs. Hydroponics was also integrated into the space program as hydroponics easily fit into their sustainability plans. The research for their plans is ongoing. By the 1970’s, scientists and analysts wee not the only people interest in hydroponics. Traditional farmers and eager hobbyists began to be attracted to the virtues of hydroponic growing. Some of the more popular water culture systems include raft systems, nutrient film techniques, and aeroponics. 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.