Looking good! I've never been a fan of 24 hour light, plants need to rest just like we do. I learned how to grow from a book I found 15 years ago it was called, "How To Grow Marijuana Indoors Under Lights." It was an old book too from back in the 70's. One of the things I remember distinctly was that after the seed germinated make a small hole in the dirt with a pencil then place the seed into the hole with the tap root pointing UP. This will make the root curl down forming a knuckle or whatever and this is supposed to give the plant a stronger base. This is how I've always done it so I'm not sure if it makes a difference or not. But when I yank my plants that tap root always has that curl or knuckle they talked about in that old book.
I wish I still had that book there was a lot of good information in there
Keep it up and let us know how they're doing in about a week.