A Brief Word Of Warning:

Poor quality lighting systems can be very dangerous and accidents are more likely to occur if the person who sets up the equipment is not particular about safety. Always buy quality assured electrical equipment that carries the safety mark for your country. Do not risk your life or the lives of those you love just to save a few pounds or dollars.

-- IF IN DOUBT CONSULT A PROFESSIONAL ELECTRICIAN

Plants can be supported in a variety of ways, by using frames and tying the plant stems to them at regular intervals using plastic ties. Automatic reels can be bought which makes the job a lot easier. They consist of a spring loaded reel of cord with a hook arrangement that fixes to the ceiling, or a top runner, and a hook or loop to tie to the top area of the plant stem. As the plant grows so the slack in the cord is taken up by the reel. Depending on your growing system the roots will either be supported or not. If no support is used, for example in a water culture system, then the plant should be supported at or near the base of the stem, to stop it lifting if reel supports are used.

And so to the temperature control in your artificial climate. The optimum temperature for your plants will again vary with both genus and species. Ask your supplier what this should be. Now you will need devise a system to maintain the temperature within the optimum top and bottom limits. This can be achieved by either a series of fans and/or heaters together with various other pieces of equipment such as timers, controllers, monitors and CO2 dosers, or by a commercially produced environmental control system. These ready made systems come in a variety of price options designed to suit almost every pocket. In general, the more you are prepared to spend, the more sophisticated the systems that are available to you.

Fresh air requirements for your grow room are normally provided using a fan assisted ducting system . This introduces clean air from the outside, via a filter to remove impurities. An Ozone generator is often used to improve the supply of oxygen and neutralize any noxious odours. Another similar ducting system then extracts the dirty air back to the outside, again via a filter to remove impurities and cut down on unwelcome odours. Humidifiers can be used, if needed, to increase the amount of airborne water vapour.


source : hydroponic