Among fluorescent lights, some types are better than others for specific purposes. The Gro-Lux wide-spectrum fluorescent combines some of the good characteristics of incandescent with the best light ranges of fluorescents, and is probably the most satisfactory single light to use for foliage plants, vegetables and flowering plants. However, a combination of the standard Gro-Lux and the wide-spectrum Gro-Lux is better for raising seedlings, propagating cuttings and force bulbs. Seedlings should be placed with a distance of about three inches between the tubes and the seedling tops as soon as the green sprouts have broken through the soil.
Its not hard to learn at which distance from the lights your plants do best. Just watch them. If the leaves turn brown or bleach out and if the plant tends to hug the sides of the pot, there is to much light. If plants grow tall and willowy with little or no bloom, there is to little. Generally, plants that don’t bloom need much less light than plants that do.
As humidity control, put a plastic curtain around shelves; just a strip of clear plastic thumbtacked to the top and bottom shelves gives plants their own little greenhouse. Plants grown in this plastic enclosure seldom need watering, and they have that shining-with-health look that goes with plenty of humidity. Open the curtain everyday to give them a change of air.
Care To Plant 