Red Lines on my plant

[piesandcakes]

Hi Guys and Girls,

I was wondering if anyone can help? Im growing for the first time and im in veg mode at present. Everything was going fine until the other day i noticed that the stem had red/purple streaks on it and where the leaf joins the stem the joint is red/purplish.

Is that normal and if not any suggestions?

Many Thanks

 

[Damagoman]

I can be norml,
and it can be a nutrient problem.

Mine always look that way, as seedlings.