Most people start seeds with flouro. Your light at 6 inches is much too close because plant height will be stunted. Plants grow elongated stems when light is weak and far away, and stems are very short when light is bright and up close. You're going to be using a lot of electricity just for getting seedlings to start. Any way you could use a flouro? If you need the 1000, then put it several feet away, like maybe 5 feet. If the stems start to appear elongated, weak, and like the plant might fall over, then move the light closer.