Purple stem and edge of leaves??

Ok so I have 3 seedlings. One that is 4 days old and the other are 2 days old. They have a purple stem as well as a purplish tint on the edge of the leaves. Is this normal? I'm not sure of the strain, but it was from some dank nug I got from a friend who grew it. I am going to find out though. I am using just 2 29 watt CFL's about 1-2" away 24hr a day. Miracle Gro Organic potting soil and my pH is about 6.8ish. Here are a few pics: (4 days old)






And here are 2 pics from the other 2: (2 days old)





Hard to see the purple on the leaves being that it is out on the very edge.

BTT

those look fine to me. looks a lot like a purple stem seedling i have right now

whats the lowest the temp gets on them?

i have aheavy indica clone gorup that has very defined purple streaking up stems and fan leaf stems

It doesnt get any lower than 60* plus the lights are on 24hr a day giving off a lil bit of heat.

It sounds like it's just the strain. It looks nice too.
It is good to let them have at least 6 hours of dark. I believe that the dark allows the leaves to rest and dirrects its energy to developing the root system. More roots=bigger&better buds.

Yeah I got the seeds from some dank bud I got from a friend who grew. He said it was blueberry, but I do not know any truth to that. Does blueberry have any characteristics such as mine? Must be too young to tell eh? And I plan on switching to 18/6 here in a day or so.