these plants are about 2-3 days old... do they look stretched?? i have a 400w MH thats about a foot away
They look good to me. Be careful you don't cook em with the heat from the light as young as they are.
a 400w MH might be a little much for plants that small...i'd start them with floros for a week then put the MH on. But if you don't want to buy the floros, then you might want to consider moving your MH back a little bit more. is your lighting scedule 18/6 or 24/7?
Can't tell yet because seedlings will stretch to the top of the cup because the light is focused at the center. I would fill the cups a little more next time. And don't worry about the MH as long as it's 2 1/2 to 3 feet above the cups. Plants love the MH light but floros would be better for the seedlings until they get their first true leaves and a node starting above that. I've put seedlings at below 3 feet from and MH and never had problems though.