Hydroponics systems include the nutrient film technique, aeroponics, and the aeration technique. In the aeroponics method plants are anchored using screens, rigid pipes, or films. The required nutrients are mixed into the plants’ water supply artificially. The plant roots are suspended within the water by various designs and the crop obtains the food nutrients directly from the water, or from an air mist sprayed directly unto the plant roots. The water consumption in hydroponic growing is significantly less than traditional growth methods; in many cases, hydroponic crops use a tenth of the water of equivalent traditional crops. Also, the water that is used is used more effectively; in hydroponics, weeds do not steal part of the crop’s water supply. Examples of hydrocarbon fuels are propane, butane, natural gas and alcohol. Fuels that contain sulfur or sulfur compounds cannot be used because they produce harmful by products when they burn. Dry ice can be used in small greenhouses, especially if a cooling effect is also desired. Dry ice, which is solid carbon dioxide, is effective when used in a well-sealed area. The bright yellow color will attract the spider mites where they will adhere to the sticky surface. The yellow cards are best for preventing the infestations of spider mites, but can’t act alone in eliminating them. It’s best to identify spider mites before their infestation grows too large, eliminating the spider mites with early detection will save your hydroponically grown produce. The greatest advantage to hydroponics is the overall outcome of the plants, which will be of better quality and are much healthier. Gardeners can give nature a helping hand while enjoying the therapeutic benefits of their garden. Gardeners will be able to watch the spectacular improvements that growing hydroponically can bring to their garden. The basic nutrients needed in any hydroponic solution are potassium phosphate, potassium nitrate, calcium nitrate and magnesium sulfate. All of these salts must be thoroughly dissolved before being allowed to circulate around your root systems. Micronutrients are also needed for proper growth of your plants.