I had the same problem two grows back. Your seedlings look exactly like mine did. I made the awful mistake of trying to sprout them along with some plants that were already in flowering under a HPS light and some huge compact floros. Basically, the light killed them. My grow area is limited due to space. I use the little space we have to grow from seed. Don't have any cloning room. I usually end up with five good plants, but that time I made the mistake of trying to fill the space I have because I ended up with only two females. I'll never do that again.