they seem a little funny colored.. could be strain or a def.
what kind of light you using? an HPS or red spectrum of light will make them stretch faster
is that one month from seed?? mine are like 4 weeks and are getting close to two feet.. So im guessing cfls? they tend to grow slowly so you get less distance between nodes(bushier) but that can be a good thing after all. maybe a little lst to get them to open up and let light in and add a HID higher up so theyll get taller searching for the light
I just changed the rez a few days ago & The new nutes changed them to a lightly dingier white. Sorta like a light taupe color now.
Still healthy just stained a little.