@nor-cal it depends on what promix variant he’s running. It can run hot in general. We aren’t talking time release nutrient pellets but yes there are amended options mx, bx, etc. Some are loaded with mycorrhizae and other beneficials.
@blood...tough spot for sure. Keep flushing and you’ll stress that young seedling. Don’t flush and you may burn her and stunt her anyways. Try to pull her out with intact root mass and repot and you’ll for sure stress her into a he.
Calling in backup...
@organoman what would you do?