Lambs Breath Auto

All seeds were germinated using the paper towel method and planted once root was about .75 inch. I started the lights around 36in and have adjusted down from there while also messing around with the power setting (now have the left light at 50% and the right at 75%). Also, the seeds are planted in fox farm soil which I flushed and let dry out a bit before planting. So far, I think two of the seedlings look pretty good, one of the seeds got stuck in the shell so is lagging quite far behind, and the last started out the strongest but has started to turn yellow and brown at the tips and curl up. I was very light with the watering for the first week, only wetting topsoil once a day so I think it may have nutrient burn from the soil? Because of this I did my first full water yesterday, watering until it was seeping out of fabric pot at the bottom. Not sure if this was the problem but didn't think it was light/temp/humidity/ph since two of the plants are looking good. This is my first grow so any help is much appreciated!