Bent over backwards

hi i got sum seedlings that for sum reason seem to be fallin over, they are autos under a 250 and are amongst other older plants under a 600.
if u can identify this problem i wud be much appretiated

lights could be too far away

Happens sometimes.

Could be because they are overwatered or underwatered- the other extreme, or the light's too far away.

When it happened to me I propped them up and put the light real close to the leaves. it was a 400 watt with good ventilation.

The stems fattened up in a couple of days.

Looks like a two fold problem, biggest has already been stated the light is either too far away or not enough light since they are stretched. The other part appears from the photo that they are not getting enough wind to encourage the stem to thicken. you might want to prop them upright and make sure that they have a little breeze on them, at this point not much just enough to make them strengthen their stem. The problem is usually corrected in a day or two. One other thing you might want to give them a weak solution of molasses in their water next watering, like a teaspoon per gallon of water, this will give them some extra sugars which will help them bulk up a bit quicker. Hope this helps and good luck.

thank guys took your advice about the light and wind and it seemed to sort most of the out, still a few stragglers tho