Hydroponic gardening is an exciting field that offers solutions to several problems faced in the world of food production. For impoverished people who live in a terrain or climate inhospitable to agriculture, hydroponics offers a means of growing food. 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. The nutrients in a hydroponic system are mixed with water and sent directly to the root system. Hydroponic systems use apparatus that are varied. There are two basic divisions between systems: water culture and media based. Systems may also be active or passive. Active systems use pumps and usually timers and other electronic gadgets to monitor the operation. The best way to avoid a spider mite infestation is by taking precautionary measures. Plants should be visually inspected weekly; this will help determine if there are any in your garden. It’s important to check under leaves, around the stems and in the growing medium or soil for signs of spider mites. Many of the items you need for hydroponics can already be found around your house so you can save money before you go full tilt into this hobby. The first thing any hydroponic gardener needs is a dedicated area for their gardening. Most newbie gardeners can either purchase an easy to install grow room or build a greenhouse outside of their home. Plants are able to change their own cellular pH level to stop or help speed up a certain enzyme reaction. The electrical charges in soil particles are different from those in mixtures with no soil. Because of this reason, different pH levels for nutrient uptake are needed for each type of growing medium. Throughout the last century, scientists and horticulturists have experimented with different methods of hydroponics. One of the potential applications of hydroponics that helped continue research was for growing produce in non-arable areas of the world. Hydroponics was also integrated into the space program as hydroponics easily fit into their sustainability plans.