Hi, I had 9 seedlings going who were looking great and started their second set of leaves but now all look horribly sick. I've had to use 'bug gun' pest spray to get rid of some bugs that were all over them, given them a water since then and the next day they look like this.
They look burned up either from the bug spray chemicals, or what ever nutrients are in that soil. What kind of soil is that?
That pH is a bit low. Not ideal soil for MJ. You'll want a good draining soil with a pH of around 6.5.
After they got bigger I was going to transplant them into the same soil but mixed with perlite/garden compost/broken down cow manure.