Thanks for the reply I think I will conitune to monitor pH and when I transplant I think I will go back to a pro-grow mix. I think it is was a bad idea to go with the black earth I got no idea whats in it. I had fly larvae eat one seed already from this type of soil.
This is a Super Lemon Haze seedling at day 24. The stem above the cotyledons first turned red now its moving up the plant and is on the petioles as of today. Also the 1st set of leavers turned turned yellow at the tips.
I used black earth as a medium without lime or any other additive so...