Using enemy insects is a safe and poison free way of controlling spider mites. Natural enemies will feast on the spider mites until there aren’t enough for the predator to survive, then they will die off or leave in search of more food. Releasing predator insects into your hydroponics garden infestations of spider mites can be eliminated or, they can be avoided. The small space requirement makes hydroponics perfect for limited space home gardeners. The greatest benefit to hydroponics is the ability to automate the hydroponics system with timers and remote monitoring equipment. Growing plants hydroponically is not simple, but with time it will become an easy routine. The most popular method of generating carbon dioxide for your hydroponic plants is the use of a pressurized carbon dioxide system. The equipment is relatively inexpensive (under $500) and the operating expense is low. In addition this system does not generate heat so it is easier to regulate than other forms of generating carbon dioxide. Specially formulated hydroponic fertilizer mixtures are required and should be tested after dilution to ensure a pH level of between five and six. This nutrient solution should be changed every two weeks and in between changes should be checked so the volume is kept level by adding more water only and not additional formula. The perfect level must be found for the plants you are trying to feed. The pH level for plants determines what type of nutrient solution that they need. Acid loving plants need a pH level below 7 while other plants need a level above 7 to achieve optimal growth. In addition, for optimal absorption of the nutrient solution, air must be allowed to circulate around the roots of the plants. Important “Must-Haves” When Buying your Hydroponic Supplies Gardeners that are new to hydroponics often go overboard buying items that they may need in the future but will not need in the beginning stages of hydroponic gardening. To begin your hydroponic gardening project you will only need a few things to get you off to a great start.